I think, for what my young opinion’s worth,
That good as it is to have infallible wisdom,
Since this is rarely found, the next best thing
Is to be willing to listen to wise advice.

[γνώμη γὰρ εἴ τις κἀπ᾽ ἐμοῦ νεωτέρου
πρόσεστι, φήμ᾽ ἔγωγε πρεσβεύειν πολὺ
φῦναι τὸν ἄνδρα πάντ᾽ ἐπιστήμης πλέων:
εἰ δ᾽ οὖν, φιλεῖ γὰρ τοῦτο μὴ ταύτῃ ῥέπειν,
καὶ τῶν λεγόντων εὖ καλὸν τὸ μανθάνειν.]

Sophocles (496-406 BC) Greek tragic playwright
Antigone, l. 719ff [Haemon] (441 BC) [tr. Watling (1947)]
    (Source)

Original Greek. Alternate translations:

For, if grounded maxims
May find their utterance e'en in me your son,
I dare be bold to say 'tis better far
That understanding should be born in man:
But if this may not be: -- and, to say sooth,
The common scale inclines not thus, -- 'tis well
To learn from any one who reasons soundly.
[tr. Donaldson (1848)]

For, if one young in years may claim some sense,
I'll say 'tis best of all to be endowed
With absolute wisdom; but, if that's denied,
(And nature takes not readily that ply)
Next wise is he who lists to sage advice.
[tr. Campbell (1873)]

If any judgement hath informed my youth,
I grant it noblest to be always wise,
But, -- for omniscience is denied to man --
Tis good to hearken to admonishment.
[tr. Storr (1859)]

For if even from me, a younger man, a worthy thought may be supplied, by far the best thing, I believe, would be for men to be all-wise by nature. Otherwise -- since most often it does not turn out that way -- it is good to learn in addition from those who advise you well.
[tr. Jebb (1891)]

For if I, a younger man, may offer my thought, it were far best, I ween, that men should be all-wise by nature; but, otherwise -- and oft the scale inclines not so -- 'tis good also to learn from those who speak aright.
[tr. Jebb (1917)]

I know I am young; but please let me say this: The ideal condition
Would be, I admit, that men should be right by instinct;
But since we are all too likely to go astray,
The reasonable thing is to learn from those who can teach.
[tr. Fitts/Fitzgerald (1939), l. 578ff]

Young as I am, if I may give advice,
I'd say it would be best if men were born
perfect in wisdom, but failing this
(which often fails) it can be no dishonor
to learn from others when they speak good sense.
[tr. Wyckoff (1954)]

If one who is still young can speak with sense,
Then I would say that he does best who has
Most understanding; second best, the man
Who profits from the wisdom of another.
[tr. Kitto (1962)]

I'm young, I know, but let me offer this:
it would be best by far, I admit,
if a man were born infallible, right by nature.
If not -- and things don't often go that way --
it's best to learn from those with good advice.
[tr. Fagles (1982), l. 805ff]

For if an opinion comes up from me, a younger person,
I say it is by far best that a man be born filled with
wisdom. If he is not, for the scale does not usually so incline,
to learn from those speaking competently is a noble thing.
[tr. Tyrell/Bennett (2002)]

I’m younger, I know but I still might be able to judge what’s right and I say that it’s a good thing for a man to be born with all possible wisdom but still -- because it’s not such a common thing -- to be able to learn from others.
[tr. Theodoridis (2004)]

For if I, as a younger man, may state
my views, I’d say it would be for the best
if men by nature understood all things --
if not, and that is usually the case,
when men speak well, it good to learn from them.
[tr. Johnston (2005)]

Even though I'm young, a good idea might come from me: It would be best by far that man be born full of all the knowledge there is, but, if it usually happens not to turn out that way, to learn from those who speak well is a good substitute.
[tr. Thomas (2005)]