You are under no obligation to be the same person you were five minutes ago.
 

Often in early youth an opinion or custom seems absurd to us, which, with advancing years, we discover has some justification and so appears less absurd. Ought we to conclude from this that certain customs are not so ridiculous as others? One might sometimes be tempted to think that they were established by people who had read the book of life through, and that they are judged by those who, despite their intelligence, have only glanced at a few pages.
[tr. Hutchinson (1902)]

Often an opinion or custom seems absurd to us in early youth; but as we advance in life we see the reason for it, and it appears less fatuous. Must we conclude from this that certain customs actually are less absurd? One is sometimes led to suppose that they have been established by folk who have read the whole of the book of life, and that they are criticized by those who, in spite of their intelligence, have only read a page or two at best.
[tr. Mathers (1926)]

Often an opinion, a custom, seems absurd to begin with, when one is very young, and as one advances in life one learns the reason for it, and it seems less so. Must one conclude, then, that certain customs have become less ridiculous? At times one is drawn to the conclusion that they were established by persons who had read the book of life entire, and are judged by others who have read only a few pages.
[tr. Merwin (1969)]

Often an opinion, or a custom, begins to seem absurd in one's early youth, and, as life advances, one finds the reason for it; it seems less absurd. Is one ot conclude that certain customs are less ridiculous? One would sometimes be inclined to think that they had been laid down by people who had read the entire book of life, and that they are judged by people who, in spite of their intellect, have only read a few pages of it.
[tr. Pearson (1973)]

To the very young some opinions or customs seem absurd, but as you grow older you realize the reason behind them and they seem less absurd. Are we to conclude that certain customs aren't as ridiculous as they seem? There are times when you feel that they've been created by people who've read the book of life from cover to cover and that they're being judged by those who, however intelligent, have read only a few pages.
[tr. Parmée (2003), ¶ 20]

Mrs. Darling came to the window, for at present she was keeping a sharp eye on Wendy. She told Peter that she had adopted all the other boys, and would like to adopt him also.
“Would you send me to school?” he inquired craftily.
“Yes.”
“And then to an office?”
“I suppose so.”
“Soon I should be a man?”
“Very soon.”
“I don’t want to go to school and learn solemn things,” he told her passionately. “I don’t want to be a man. O Wendy’s mother, if I was to wake up and feel there was a beard!”
“Peter,” said Wendy the comforter, “I should love you in a beard;” and Mrs. Darling stretched out her arms to him, but he repulsed her.
“Keep back, lady, no one is going to catch me and make me a man.”

“It was because I heard father and mother,” he explained in a low voice, “talking about what I was to be when I became a man.” He was extraordinarily agitated now. “I don’t want ever to be a man,” he said with passion. “I want always to be a little boy and to have fun. So I ran away to Kensington Gardens and lived a long long time among the fairies.”

When I was as you are now, towering in the confidence of twenty-one, little did I suspect that I should be at forty-nine, what I now am.

Man arrives a novice at every age of life.
[ed. Mathews (1878)]

Man reaches each stage in his life as a novice.
[tr. Hutchinson (1902), "The Cynic's Breviary"]

A man begins every stage of his life as a novice.
[tr. Parmée (2003), ¶ 422]

Few books give life-long pleasure. There are some for which, with the growth of time, wisdom, and good sense, we lose all taste.
[tr. Lyttelton (1899), ch. 22, ¶ 84]

Yet the superstition
in which we have grown up, not therefore loses
when we detect it, all its influence on us.
Not all are free that can bemock their fetters.
[tr. Taylor (1790)]

The superstition in which we grew up,
Does not cease influencing us, e'en after
We have discover'd its absurdity.
Not all are free who do bemock their fetters.
[tr. Reich (1860)]

The superstition in which we were brought up never loses its power over us, even after we understand it.
[Source (1866)]

And yet the superstitions we have learned
From education, do not lose their power
When we have found them out; nor are all free
Whose judgment mocks the galling chains they wear.
[tr. Boylan (1878)]

The superstition in which we have grown up
Does not lose (even if we see through it)
Its power on us, on that account;
All are not free who mock their chains.
[tr. Jacks (1894)]

The superstitions of our early years,
E'en when we know them to be nothing more,
Lose not for that their hold upon our hearts;
Not all are free who ridicule their chains.
[tr. Maxwell (1917)]

The superstition in which we have grown up does not lose its power over us even for the reason that we recognize it as such. Not all are free who mock their chains.
[tr. Reinhardt (1950)]

The superstition in which we grew up,
Though we may recognize it, does not lose
Its power over us -- Not all are free
Who make mock of their chains.
[tr. Morgan (1955)]

Merely because we see the defects of the superstition we grew up in, it doesn't lose its hold upon our souls! Those men who mock their chains are not all free!
[tr. Ade (1972)]

It is a very immature thing to worry about one’s stinking youth, but I don’t care: I think age is a very high price to pay for maturity.

But genius is simply childhood recovered at will, a childhood now equipped for self-expression, with mature faculties and an analytic spirit which permit him to set in order the mass of raw material he has involuntarily accumulated.
[tr. Kline (2020)]

Genius is only childhood recovered at will, childhood now gifted to express itself with the faculties of manhood and with the analytic mind that allows him to give order to the heap of unwittingly hoarded material.
[Source]

But genius is no more than childhood recaptured at will, childhood equipped now with man’s physical means to express itself, and with the analytical mind that enables it to bring order into the sum of experience, involuntarily amassed.
[Source]

Son, the hands of young men always itch for action, but the
judgment of the old is sounder.
Time teaches discrimination
[tr. Stevens (2012)]

The cours and the weye of age is certeyne and determyned by nature, whiche hathe onely awey which is symple & is nothyng different more in the one than in the othir. But each go by that symple and determyned wey aftir the degrees in their cours from the one age in to that other. And yet nature had given to every part of age his owne propre season and tyme, and hir pertynent cours of usage in kynde. That is to witt, that sekenesse and maladye is appropryd to the age of puerice in childhode, & cruelte is appropryd to the age of yongth, worshipfulnesse and sadnesse of maners be appropryd to the age of virilite whiche is the fyfthe age. Moderaunce and temperaunce be appropryd to olde age. Eueriche oweth to have sumwhat naturelly and appropryd unto that whiche may be gadird in his tyme.
[tr. Worcester/Worcester/Scrope (1481), Part 3]

The race and course of age is certain; and there is but one way of nature and the same simple; and to every part of a man's life and age are given his convenient times and proper tempestivities. For even as weakness and infirmity is incident to young children, lustiness and bravery to young men, and gravity when they come to ripe years; so, likewise the maturity or ripeness of old age have a certain special gift given and attributed to it by nature, which ought not to be neglected, but to be taken in his own time and season when it cometh.
[tr. Newton (1569)]

There is but one course of age, and one way of nature, and the same simple, and to every part of age its own timelines is given; for as infirmity belongs to child-hood, fiercenesse to youth, and gravity to age, so the true ripenesse of age hath a certaine natural gravity in it, which ought to be used in it own time.
[tr. Austin (1648)]

Simple, and certain Nature's wayes appear,
As she sets forth the seasons of the year.
So in all parts of life we find her truth,
Weakness to childhood, rashness to our youth:
To elder years to be discreet and grave,
Then to old age maturity she gave.
[tr. Denham (1669)]

Every Age has something in it, peculiar to it self: as Weakness to our Infancy, an unguided Warmth to Youth, Seriousness to Manhood, and a certain Maturity of Judgment to Old Age, which we may expect to reap the Fruits of, when advanced to it.
[tr. Hemming (1716)]

Life has a sure Course, and Nature but one Way, that that too simple and plain. And to every Part of Man's Age a peculiar Propriety of Temper is given: Thus Weakness in Children, a Boldness in Youth, and a Gravity in Manhood appears; and a full Ripeness of Years has always something which seems natural to it, and which ought to be made use of at a proper Time.
[tr. J. D. (1744)]

The Stages of Life are fixed; Nature is the same in all, and goes on in a plain and steady Course: Every Part of Life, like the Year, has its peculiar Season: As Children are by Nature weak, Youth is rash and bold; staid Manhood more solid and grave; and so Old-Age in its Maturity, has something natural to itself, that ought particularly to recommend it.
[tr. Logan (1750)]

Nature conducts us, by a regular and insensible progression through the different seasons of human life; to each of which she has annexed its proper and distinguishing characteristic. As imbecility is the attribute of infancy, ardour of youth, and gravity of manhood; so declining age has its essential properties, which gradually disclose themselves as years increase.
[tr. Melmoth (1773)]

The course of life is fixed, and the path of nature is one, and that simple. And its own proper seasonableness has been given to each division of life; so that both the feebleness of boys and the proud spirit of young men, and the gravity of a now settle period of life, and the maturity of old age, has something natural to it, which ought to be gathered in its own season.
[Cornish Bros. ed. (1847)]

There is a definite career in life, and one way of nature, and that a simple one; and to every part ot life its own peculiar period has been assigned: so that both the feebleness of boys, and the high spirit of young men, and the steadiness of now fixed manhood, and the maturity of old age, have something natural, which ought to be enjoyed in their own time.
[tr. Edmonds (1874)]

Life has its fixed course, and nature one unvarying way; each age has assigned to it what best suits it, so that the fickleness of boyhood, the sanguine temper of youth, the soberness of riper years, and the maturity of old age, equally have something in harmony with nature, which ought to be made availing in its season.
[tr. Peabody (1884)]

The course of life is fixed, and nature admits of its being run but in one way, and only once; and to each part of our life there is something specially seasonable; so that the feebleness of children, as well as the high spirit of youth, the soberness of maturer years, and the ripe wisdom of old age -- all have a certain natural advantage which should be secured in its proper season.
[tr. Shuckburgh (1895)]

One only way
Nature pursues, and that a simple one:
To each is given what is fit for him.
The boy is weak: youth is more full of fire:
Increasing years have more of soberness:
And as in age there is a ripeness too.
Each should be garnered at its proper time,
And made the most of.
[tr. Allison (1916)]

Life's race-course is fixed; Nature has only a single path and that path is run but once, and to each stage of existence has been allotted its own appropriate quality; so that the weakness of childhood, the impetuosity of youth, the seriousness of middle life, the maturity of old age -- each bears some of Nature's fruit, which must be garnered in its own season.
[tr. Falconer (1923)]

The course of life is clear to see; nature has only one path, and it has no turnings. Each season of life has an advantage peculiarly its own; the innocence of children, the hot blood of youth, the gravity of the prime of life, and the mellowness of age all possess advantages that are theirs by nature, and that should be garnered each at its proper time.
[tr. Copley (1967)]

Life and nature have but one direction
Easy to take, without correction.
Each of life’s rite of passage dates
Has its own distinguishing traits:
A child’s weakness
A youth’s boldness
An adult’s authority
An old man’s maturity
And each with a certain natural zest
To be reaped when it’s time for its harvest.
[tr. Bozzi (2015)]

The course of life cannot change. Nature has but a single path and you travel it only once. Each stage of life has its own appropriate qualities -- weakness in childhood, boldness in youth, seriousness in middle age, and maturity in old age. These are fruits that must be harvested in due season.
[tr. Freeman (2016)]

When a man at forty is the object of dislike, he will always continue what he is.
[tr. Legge (1861)]

When a man meets with odium at forty, he will do so to the end.
[tr. Jennings (1895)]

If a man after forty is an object of dislike to men, he will continue to be so to the end of his days.
[tr. Ku Hung-Ming (1898)]

If a man reach forty and yet be disliked by his fellows, he will be so to the end.
[tr. Soothill (1910)]

Forty and disliked. He is at the end already; too late to alter.
[tr. Soothill (1910) - alternate 1]

At 40 a man's character is settled, and if he still be detested by his fellows, then here his end is reached.
[tr. Soothill (1910) - alternate 2]

If a man is hateful at forty he'll be so to the end.
[tr. Pound (1933)]

One who has reached the age of forty and is still disliked will be so till the end.
[tr. Waley (1938)]

It is all over for the man of forty who is held in aversion.
[tr. Ware (1950), 17.24]

If hateful things are seen in one at the age of forty, that is indeed how one will end up.
[tr. Dawson (1993)]

Whoever, by the age of forty, is still disliked, will remain so till the end.
[tr. Leys (1997)]

If, at forty, a man is still loathed, he is done for.
[tr. Huang (1997), 17.25]

If one is still disliked at his forty years of age, one is going to the end.
[tr. Cai/Yu (1998), No. 466]

The person who at age forty still evokes the dislike of others is a hopeless case.
[tr. Ames/Rosemont (1998)]

If he is forty and is still hated, he will probably be so until the end.
[tr. Brooks/Brooks (1998), 17.24]

If you reach forty and find it all hateful, you'll be that way to the death.
[tr. Hinton (1998), 17.25]

If, having reached the age of forty, you still find yourself despised by others, you will remain despised until the end of your days.
[tr. Slingerland (2003)]

Forty and hated by others -- and he’ll be so the rest of his life.
[tr. Watson (2007)]

If a person has reached forty but is still an outcast, he will not have much hope for the rest of his life.
[tr. Li (2020)]

• Ralph Keyes, Nice Guys Finish Seventh (1992)
• Nigel Reese, Mark My Words (2002)
• If You Are Not a Liberal at 25, You Have No Heart. If You Are Not a Conservative at 35 You Have No Brain – Quote Investigator

• "Immoderate desire is the mark of a child, not a man." [tr. Freeman (1948)]
• "It is a characteristic of a child, not a man, to desire without measure." [tr. Chitwood (2004)]

And he that is full & replete of all the studyes & werkys perteynent to every age he is replete and wery of the tyme of this life so that he doubte not in no wise the deth as it seemyth me rightfully & as I preve it by my self. And note ye for a good advertisement to every man for to bere in remembraunce and for his prouffite. That certayne thyngys be wherin pueryce callid childhode which is the seconde age puttith his studye and his entendyng in thynges accordyng to his agrement. And the adolescente men whiche be undir the thidd age desyren in no wise the thynges and the besynes wherin puerice studyeth and occupyeth. And certeyne thynges be wherin the men studyen & occupyen them in begynnyng of their adolescencye. Also certayne thynges be in whiche yong age whiche is the fourth & the mene age puttith not his studye & besynesse in his precedent ages though the man had employed & occupied hym in the othir first ages which be smaller and of lesse degree. Yong age is callid the age stable & meane by cause that it holdith the meane betwixt adolescence & olde age And cesseth than the man for to do lighe thynges and folyes And as theene or nevir the man is stable & hole in body in witt & undirstōding the thynges and the werkys in whiche yong men studyen and occupye them been suche that olde men rek nevir of it. But namely olde age hath delectacyon in some thynges in his laste dayes wheryn he studyeth and employeth his wittys. How be it thenne that the studyes and the werkys of the fyve first ages dyen and seace in some tyme and seasons they in suche wise seacen and dyen in the besynesse studyes and the werkys of olde age whiche when they lacken in the man than he whiche is full and wery for to lyve in this worlde cometh to that tyme whiche is ripe and covenable for to dye.
[tr. Worcester/Worcester/Scrope (1481)]

But, methinks, satiety of all things causeth satiety of life. There are some fantastical and childish plays wherst young children in their childhood delight to play; shall, therefore, young men and tall fellows addict themselves to the same sembably? There are some exercises and affection swherein youthly years to enure themselves: shall the ripe and constant age (which si called the middle age of man) look to play at the same? And if this middle age there are some studies, wills, and appetites which old age careth not for. And there be some studies and exercises belonging and appropriate to old age . And therefore as the pleasure and delight of the studies and exercises in fresher and lustier ages doth in time wear away and come to an end, so doth the studies of old age in continuance and tract of time also die and vanish. And when this pleasuyre and delightful contentation begin in old men once to decrease, then doth satiety of life bring to them a convenable and mature time to die.
[tr. Newton (1569)]

Truly me thinks that the satiety of all things makes also a satiety of life. There are certain studies in children, shall young men desire them? there are others in youth, shall age require them? and there be studies in the last age: therefore as the studies of former ages fail, so do the studies of old age, so that when the satiety or fulnesse of life commeth, it bringeth also a fit time for death.
[tr. Austin (1648), ch. 21]

Satiety from all things else doth come,
Then life must to it self grow wearisome.
Those Trifles wherein Children take delight,
Grow nauseous to the young man's appetite,
And from those gaieties our youth requires,
To exercise their minds, our age retires.
And when the last delights of Age shall die,
Life in it self will find satietie.
[tr. Denham (1669)]

There are in every Stage of Life, peculiar Pleasures and Diversions, in the Pursuit of which we are employed. And as, when Boys, we are tired with such things, as pleased our Infant State, and, when advanced to a riper Age, we still grow weary of our former Diversions; so Old Age itself has its peculiar Enjoyments. Therefore, as all the several Delights, of all our different Ages, decay and grow insipid, those f our latest Years will likewise fail, and make us loath and reject them, till at last, well satisfied with Length of Days, we fall our selves, ass if it were full ripe, and fit to drop into another World.
[tr. Hemming (1716)]

'Tis a Rule with me, That the Fulness of all Things makes the Fullness of Life. Children have their Desires; must young people have the same? In some certain Studies delight Youth, must the Middle-aged too require the same? The Middle-aged have their Foibles; but they are not pursued by the Old; but Old Age has also its favourite Amusements of some Sort of other; and as the Studies of former Ages fall off from us, so do those of our Old Age at last fail us: And when that happens, then the fullness of Life brings on the fit and seasonable Moment for Death.
[tr. J. D. (1744)]

By living long we come to a Satiety in all things besides and this should naturally lead us to a Satiety of Life itself. Children we see have their particular Diversions; and does Youth, when past Childhood, pursue or desire the same? Youth also has its peculiar Exercises; and does full Manhood require these as before? Or has Old Age the same Inclinations that prevailed in more vigorous Years? We ought then to conclude, That as there is a Succession of Pursuits and Pleasures in the several Stages of Life, the one dying away, as the other advances and takes Place; so in the same Manner are those of Old Age to pass off in their Turn. And when this Satiety of Life has fully ripen'd us, we are then quietly to lie down in Death, as our last Resting-Place, where all Anxiety ends, and Cares and Fears subsist no more.
[tr. Logan (1744)]

The distaste with which, in passing through the several stages of our present being, we leave behind us the respective enjoyments peculiar to each; must necessarily, I should think, in the close of its latest period, render life itself no longer desirable. Infancy and youth, manhood and old age, have each of them their peculiar and appropriate pursuits. But does youth regret the toys of infancy, or manhood lament that no longer as a taste for the amusements of youth? The season of manhood has also its suitable objects, that are exchanged for others in old age; and these too, like all the preceding, become languid and insipt in their turn. Now when this state of absolute satiety is at length arrived; when we have enjoyed the satisfactions peculiar to old age, till we have no longer any relish remaining for them; it is then that death may justly be considered as a mature an seasonable event.
[tr. Melmoth (1773)]

In every view of it, as seems to me at least, a satiety of all pursuits produces satiety of life. Doubtless there are pursuits peculiar to boyhood; do then young men long for these? There are also pursuits proper to commencing adolescence; does that time of olife which is now settled, and is called middle-age, require them? There are also pursuits that belong to this latter period; those even are not sought after by old age. There are also certain pursuits of old age, which are the last; therefore as the pursuits of the former stages cease, so also to those of old age. And when this has come to pass, satiety of life brings on the ripe time of death.
[Cornish Bros. ed. (1847)]

On the whole, as it seems to me indeed, a satiety of all pursuits causes a satiety of life. There are pursuits peculiar to boyhood; do therefore young men regret the loss of them? There are also some of early youth; does that now settled age, which is called middle life, seek after these? There are also some of this period; neither are they looked for by old age. There are some final pursuits of old age; accordingly, as the pursuits of the earlier parts of life fall into disuse, so also do those of old age; and when this has taken place, satiety of life brings on the seasonable period of death.
[tr. Edmonds (1874)]

In fine, satiety of life, as it seems to me, creates satiety of pursuits of every kind. There are certain pursuits belonging to boyhood; do grown-up young men therefore long for them? There are others appertaining to early youth; are they required in the sedate period of life which we call middle age? This, too, has its own pursuits, and they are not sought in old age. As the pursuits of earlier periods of life fail, so in like manner do those of old age. When this period is reached, satiety of life brings a season ripe for death.
[tr. Peabody (1884)]

As a general truth, as it seems to me, it is weariness of all pursuits that creates weariness of life. There are certain pursuits adapted to childhood: do young men miss them? There are others suited to early manhood: does that settled time of life called "middle age" ask for them? There are others, again, suited to that age, but not looked for in old age. There are, finally, some which belong to old age. Therefore, as the pursuits of the earlier ages have their time for disappearing, so also have those of old age. And when that takes place, a satiety of life brings on the ripe time for death.
[tr. Shuckburgh (1895)]

To put it in a word, it seems to me
'Tis weariness of all pursuits that makes
A weary age. We have pursuits as boys,
Do young men want them? Others yet there are
Suited to growing years, are they required
By those who've reached what's termed "the middle age"?
That too enjoys its own, but are they fit
For us old me? We have our own of course,
And as the others end, just so do ours,
And when it happens, weariness of life
Proclaims that ripeness which precedes our death.
[tr. Allison (1916)]

Undoubtedly, as it seems to me at least, satiety of all pursuits causes satiety of life. Boyhood has certain pursuits: does youth yearn for them? Early youth has its pursuits: does the matured or so-called middle stage of life need them? Maturity, too, has such as are not even sought in old age, and finally, there are those suitable to old age. Therefore as the pleasures and pursuits of the earlier periods of life fall away, so also do those of old age; and when that happens man has his fill of life and the time is ripe for him to go.
[tr. Falconer (1923)]

From a more general point of view, it seems to me that once we have had our fill of all the things that have engaged our interest, we have had our fill of life itself. There are interests that are proper to childhood: does a full-grown man regret their loss? There are interests that belong to early manhood: when we reach full maturity -- what is called “middle age” -- do we look back to them with longing? Middle age itself has its special concerns; even these have lost their attraction for the old. Finally, there are interests peculiar to old age; these fall away, too, just as did those of the earlier years. When this has happened, a sense of the fullness of life tells us that it is time to die.
[tr. Copley (1967)]

When we are children, we have childish interests, but do young men miss them? And when we are middle-aged, do we want what young men want? Similarly, old men are not remotely involved in the needs of middle age; they have their own. Therefore we may argue that as the concerns of each earlier stage of life fade away, so eventually do those of old age. And when that happens, we have had enough of life and we are ready for death.
[tr. Cobbold (2012)]

Then too, I think I can safely say that when the point arrives where you have had enough of life's pursuits -- this isn't boredom but more a fullness or satisfaction -- then you have also had enough of life. There are certain pursuits of childhood which teenagers don't miss, do they? And stable, middle aged adults don't go running after the pursuits of teens, do they? And there are some interests of our middle years. therefore, just as we do not fear or regret when the pursuits of earlier stages fall away, so too the thinking person does not regret the passing of the interests of old age. And when this happens, the fullness of life brings about the time which is ripe for death.
[tr. Gerberding (2014)]

The fulfilment of all desires,
At least it seems to me, kills all life’s bliss,
And childhood certainly requires
Interests that young people do not miss,
And the tastes of youth’s initial stage
Won’t be sought after in middle age
Whose pursuits seem to be cheerless
To those in their elderliness.
Therefore as the previous life’s urges
Will set like the Sun so will old age’s.
Once life has had its fill there comes the day
On which one may suitably pass away.
[tr. Bozzi (2015)]

Finally I tell the thou oughtist use of the bodily strength as whiche is one of the goodys of nature in the meane tyme whan thou hast them. But whan the goodys of bodily strength ben no more in thee thenne thou shuldist not require it nor aske it save that thou maist saye paraventure that the adolescentys which ben in the third age owghten to desyre & aske after the age of pueryce which is seconde age & by that he is the ferthir from deth. Therfor I tell the Scipion that when men ben somwhat entrid & come within adolescence which is an age fructuouse and profitable they to require it and to aske it. And not puerice called Childhode whiche is withoute availe and profite.
[tr. Worcester/Worcester/Scrope (1481), Part 3]

In fine, use and take well in worth this gift of bodily strength while thou hast it, and when it is gone do not desire nor seek to have it again, unless peradventure you will say that all young men ought to wish themselves in their infancy and swathing-bands again, or when they be somewhat further stricken in years and in the maturity or best time of their age, to wish themselves again in their adolescency.
[tr. Newton (1569)]

To conclude, use that strength which you have while you have it; but when it is gone, require it not, unlesse you thinke it a seemly thing of young men, to require their child-hood againe, and ancient men their youth.
[tr. Austin (1648)]

The force which Nature gives with care retain,
But when decay'd, 'tis folly to complain;
In age to wish for youth is full as vain,
As for a youth to turn a child again.
[tr. Denham (1669)]

The Faculties of our Bodies are to be made use of, while we possess them, but not to be lamented, when they have left us; unless you would think it reasonable that Boys should be desirous to become Children, and that those, who are become Men, should be wishing to grow Boys again.
[tr. Hemming (1716)]

In short, make use of any Good while you have it, and when it's gone look not for it, unless you think young Men would do right to require Childhood again, or Men in Years their Youth.
[tr. J. D. (1744)]

In short, while you have Strength, use it; when it leaves you, no more repine for the want of it, than you did when Lads, that your Childhood was past; or at the Years of Manhood, that you were no longer Boys.
[tr. Logan (1750)]

In a word, my friends, make a good use of your youthful vigour so long as it remains; but never let it cost you a sign when age shall have withdrawn it from you; as reasonably indeed might youth regret the loss of infancy, or manhood the extinction of youth.
[tr. Melmoth (1773)]

In a word, make use of that good thing while it is present; when it is absent do not regret it; unless, perhaps, young men ought to seek to be boys again; those who have made a little advance in years, to be young men again.
[Cornish Bros. ed. (1847)]

In fine, I would have you use strength of body while you have it: when it fails, I would not have you complain of its loss, unless you think it fitting for young men to regret their boyhood, or for those who have passed on a little farther in life to want their youth back again.
[tr. Peabody (1884)]

In fine, enjoy that blessing when you have it; when it is gone, don't wish it back -- unless we are to think that young men should wish their childhood back, and those somewhat older their youth!
[tr. Shuckburgh (1895)]

Use then the gifts you have:
When gone, regret them not: unless as men
You are to ask for boyhood to return,
When older ask for you: there still must be
A certain lapse of years.
[tr. Allison (1916)]

In short, enjoy the blessing of strength while you have it and do not bewail it when it is gone, unless, forsooth, you believe that youth must lament the loss of infancy, or early manhood the passing of youth.
[tr. Falconer (1923)]

To sum it up: use the advantages you have while you have them; when they are gone, don’t sit around wishing you could get them back. Or do you think, perhaps, that young men ought to mourn their lost boyhood, and those a bit older their younger days?
[tr. Copley (1967)]

Use whatever gifts you have while you have them, and don’t mope after them when they are gone -- unless of course you think that young men should regret their childhood and that those who are getting on should regret their youth.
[tr. Cobbold (2012)]

So to put it in a nutshell
Use your own strength and use it well
As long as it lasts and when it is spent
Just forget it unless you should
Think that boyhood regrets childhood
Or that manhood may its decline lament.
[tr. Bozzi (2015)]

In short, enjoy the blessing of bodily strength while you have it, but don't mourn when it passes away, any more than a young man should lament the end of boyhood, or a mature man the passing of youth.
[tr. Freeman (2016)]

At twenty years of age the Will reigns; at thirty the Wit; at fourty, the Judgment.
[Flesher ed. (1685)]

At twenty years desire rules us, at thirty, expediency, at forty, judgment.
[tr. Fischer (1937)]

When one is twenty, the will reigns; a thirty, the intelligence; at forty, judgment.
[tr. Maurer (1992)]

At 20 years of age the Will reigns; at 30 the Wit; at 40 the Judgment.
[Benjamin Franklin, Poor Richard's Almanack (1741)

When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things.
[KJV (1611)]

When I was a child, my speech, feelings, and thinking were all those of a child; now that I am an adult, I have no more use for childish ways.
[GNT (1976)]

When I was a child, I used to talk like a child, and see things as a child does, and think like a child; but now that I have become an adult, I have finished with all childish ways.
[NJB (1985)]

When I was a child, I used to speak like a child, reason like a child, think like a child. But now that I have become a man, I’ve put an end to childish things.
[CEB (2011)]

When I was a child, I spoke like a child, I thought like a child, I reasoned like a child. When I became an adult, I put an end to childish ways.
[NRSV (2021 ed.)]

At twenty years of age a Peacock; at thirty a Lion; at fourty a Camel; at fifty a Serpent; at sixty a Dog; at seventy an Ape; at fourscore nothing at all.
[Flesher ed. (1685)]

At twenty a man is a Peacock, at thirty a Lion, at forty a Camel, at fifty a Serpent, at sixty a Dog, at seventy an Ape, at eighty nothing.
[tr. Jacobs (1892)]

At twenty, man is a peacock, at thirty a lion, at forty a camel, at fifty a snake, at sixty a dog, at seventy an ape, and at eighty, nothing.
[tr. Fischer (1937)]

• To be seventy years young is sometimes far more cheerful than to be forty years old.
• To feel seventy years young is far more cheerful than to feel forty years old.
• It is possible to be seventy years young, instead of forty years old.

As for your mothers's age, I am bound to believe her own story, but I can only say that to be seventy years young is sometimes far more cheerful and hopeful than to be forty years old.

The seventieth birthday was a great festival. Maud, inviting Oliver Wendell Holmes to the party, had written, "Mamma will be seventy years young on the 27th, Come and play with her!"
The Doctor in his reply said, "It is better to be seventy years young than forty years old!"

• "When I was young, I admired clever people. Now that I am older, I admire kind people."
• "When I was young, I used to admire intelligent people; as I grow older, I admire kind people."

The knowledge of one's self is the beginning of amendment.
[Flesher ed. (1685)]

Self-knowledge is the beginning of self-improvement.
[tr. Jacobs (1892)]

It is a first principle that in order to improve yourself, you must first know yourself.
[tr. Fischer (1937)]

• If youth only knew; if only age could.
• If youth knew; if age could.
• If only youth knew; if only age could.

And so it is best to unite women of about eighteen years of age and men of thirty-seven or less; for by such an arrangement the union will be during their greatest physical perfection, and will, as the years pass reach the limit of child-begetting at the right time. Again, the succession of children will be secured, as the younger generation will be having children at the beginning of their prime, supposing some to be born at once, as we may expect, and as the right age has passed away from the older generation as they approach the limit of seventy years.
[tr. Bolland (1877)]

Women should marry when they are about eighteen years of age, and men at seven and thirty; then they are in the prime of life, and the decline in the powers of both will coincide. Further, the children, if their birth takes place soon, as may reasonably be expected, will succeed in the beginning of their prime, when the fathers are already in the decline of life, and have nearly reached their term of three-score years and ten.
[tr. Jowett (1885)]

For which reason the proper time for a woman to marry is eighteen, for a man thirty-seven, a little more or less; for when they marry at that time their bodies are in perfection, and they will also cease to have children at a proper time; and moreover with respect to the succession of the children, if they have them at the time which may reasonably be expected, they will be just arriving into perfection when their parents are sinking down under the load of seventy years.
[tr. Ellis (1912)]

Hence it is fitting for women to unite in marriage around the age of eighteen, and for men at thirty-seven or a little before. At such an age, union will occur when their bodies are in their prime, and will arrive at its conclusion conveniently for both of them with respect to the cessation of procreation. Further, the succession of the offspring -- if birth occurs shortly after marriage, as can reasonably be expected -- will be for them at the beginning of their prime, while for the fathers it will be when their age has already run its course toward the seventieth year.
[tr. Lord (1984)]

JANE: Why can't you fly now, Mother?
WENDY: Because I'm grown up, sweetheart; when people grow up they forget the way.
JANE: Why do they forget the way?
WENDY: Because they are no longer young and innocent. It is only the young and innocent that can fly.

Hence the young man is not a fit student of Moral Philosophy, for he has no experience in the actions of life, while all that is said presupposes and is concerned with these: and in the next place, since he is apt to follow the impulses of his passions, he will hear as though he heard not, and to no profit, the end in view being practice and not mere knowledge.
[tr. Chase (1847), ch. 1]

And hence it is that a young man is not a fit student of the art political; for he has had no experience in matters of daily life, with which matters our premises are concerned, and of which our conclusions treat. And since, moreover, he is prone to follow his desires, he will listen without purpose, and so without benefit. For the true object of ethical study is not merely the knowledge of what is good, but the application of that knowledge.
[tr. Williams (1869), sec. 3]

Hence the young are not proper students of political science, as they have no experience of the actions of life which form the premises and subjects of the reasonings. Also it may be added that from their tendency to follow their emotions they will not study the subject to any purpose or profit, as its end is not knowledge but action.
[tr. Welldon (1892), ch. 1]

And hence a young man is not qualified to be a student of Politics; for he lacks experience of the affairs of life, which form the data and the subject-matter of Politics. Further, since he is apt to be swayed by his feelings, he will derive no benefit from a study whose aim is not speculative but practical.
[tr. Peters (1893)]

Hence the young are not fit to be students of Political Science. For they have no experience of life and conduct, and it is these that supply the premisses and subject matter of this branch of philosophy. And moreover they are led by their feelings; so that they will study the subject to no purpose or advantage, since the end of this science is not knowledge but action.
[tr. Rackham (1934)]

That is why a young person is not a suitable audience for politics. For he has no experience with the actions of life, and the accounts are in accord with these and concerned with these. Further, since he tends to follow his feelings, it will be pointless and not beneficial to him to be in the audience, since the end is not knowledge but action.
[tr. Reeve (1948)]

In view of this, a young man is not a proper student of [lectures on] politics; for he is inexperienced in actions concerning human life, and discussions proceed from [premisses concerning those actions] and deal with [those actions]. Moreover, being disposed to follow his passions, he will listen in vain and without benefit, since the end of such discussions is not knowledge but actions.
[tr. Apostle (1975), ch. 1]

This is why a young man is not a fit person to attend lectures on political science, because he is not versed in the practical business of life from which politics draws its premisses and subject matter. Besides, he tends to follow his feelings, with the result that he will make no headway and derive no benefit from his course, since the object of it is not knowledge but action.
[tr. Thomson/Tredennick (1976)]

This is why a youth is not a suitable student of political science; for he lacks experience of the actions of life which political science argues from and about. Moreover, since he tends to be guided by his feelings, his study will be futile and useless; for its end is action, not knowledge.
[tr. Irwin/Fine (1995)]

This is why a young person is not fitted to hear lectures on political science, since our discussions begin from and concern the actions of life, and of these he has no experience. Again, because of his tendency to follow his feelings, his studies will be useless and to no purpose, since the end of the study is not knowledge but action.
[tr. Crisp (2000)]

Hence of the political art, a young person is not an appropriate student, for he is inexperienced in the actions pertaining to life, and the arguments are based on these actions and concern them. Further, because he is disposed to follow the passions, he will listen pointlessly and unprofitably, since the end involved is not knowledge but action.
[tr. Bartlett/Collins (2011)]

Young men, whom Aristotle thought
Unfit to hear moral philosophy