On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee the pain and trouble that are bound to ensue; and equal blame belongs to those who fail in their duty through weakness of will, which is the same as saying through shrinking from toil and pain. These cases are perfectly simple and easy to distinguish. In a free hour, when our power of choice is untrammeled and when nothing prevents our being able to do what we like best, every pleasure is to be welcomed and every pain avoided. But in certain circumstances and owing to the claims of duty or the obligations of business it will frequently occur that pleasures have to be repudiated and annoyances accepted. The wise man therefore always holds in these matters to this principle of selection: he rejects pleasures to secure other greater pleasures, or else he endures pains to avoid worse pains.

[At vero eos et accusamus et iusto odio dignissimos ducimus, qui blanditiis praesentium voluptatum deleniti atque corrupti, quos dolores et quas molestias excepturi sint, obcaecati cupiditate non provident, similique sunt in culpa, qui officia deserunt mollitia animi, id est laborum et dolorum fuga. et harum quidem rerum facilis est et expedita distinctio. nam libero tempore, cum soluta nobis est eligendi optio, cumque nihil impedit, quo minus id, quod maxime placeat, facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet, ut et voluptates repudiandae sint et molestiae non recusandae. itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.]

Marcus Tullius Cicero (106-43 BC) Roman orator, statesman, philosopher
De Finibus Bonorum et Malorum [On the Ends of Good and Evil], Book 1, sec. 33 (ch. 10) (44 BC) [tr. Rackham (1914)]
    (Source)

Alt. trans.:

• "Then again we criticize and consider wholly deserving of our odium those who are so seduced and corrupted by the blandishments of immediate pleasure that they fail to foresee in their blind passion the pain and harm to come. Equally blameworthy are those who abandon their duties through mental weakness -- that is, through the avoidance of effort and pain. It is quite simple and straightforward to distinguish such cases. In our free time, when our choice is unconstrained and there is nothing to prevent us doing what most pleases us, every pleasure is to be tasted, every pain shunned. But in certain circumstances it will often happen that either the call of duty or some sort of crisis dictates that pleasures are to be repudiated and inconveniences accepted. And so the wise person will uphold the following method of selecting pleasures and pains: pleasures are rejected when this results in other greater pleasures; pains are selected when this avoids worse pains." [On Moral Ends, tr. Woolf (2001)]
• "But in truth we do blame and deem most deserving of righteous hatred the men who, enervated and depraved by the fascination of momentary pleasures, do not foresee the pains and troubles which are sure to befall them, because they are blinded by desire, and in the same error are involved those who prove traitors to their duties through effeminacy of spirit, I mean because they shun exertions and trouble. Now it is easy and and simple to mark the difference between these cases. For at our seasons of ease, when we have untrammelled freedom of choice, and when nothing debars us from the power of following the course that pleases us best, then pleasure is wholly a matter for our selection and pain for our rejection. On certain occasions however either through the inevitable call of duty or through stress of circumstances, it will often come to pass that we must put pleasures from us and must make no protest against annoyance. So in such cases the principle of selection adopted by the wise man is that he should either by refusing cerftain pleasures attain to other and greater pleasures or by enduring pains should ward off pains still more severe." [tr. Reid (1883)]
• "But we do accuse those men, and think them entirely worthy of the greatest hatred, who, being made effeminate and corrupted by the allurements of present pleasure, are so blinded by passion that they do not foresee what pains and annoyances they will hereafter be subject to; and who are equally guilty with those who, through weakness of mind, that is to say, from eagerness to avoid labour and pain, desert their duty. And the distinction between these things is quick and easy. For at a time when we are free, when the option of choice is in our own power, and when there is nothing to prevent our being able to do whatsoever we choose, then every pleasure may be enjoyed, and every pain repelled. But on particular occasions it will often happen, owing whether to the obligations of duty or the necessities of business, that pleasures must be declined and annoyances must not be shirked. Therefore the wise man holds to this principle of choice in those matters, that he rejects some pleasures, so as, by the rejection to obtain others which are greater, and encounters some pains, so as by that means to escape others which are more formidable." [On the Chief Good and Evil, tr. Yongue (1853)]