“Nor can one easily find among many thousands a single man who considers virtue its own reward. The very glory of a good deed, if it lacks reward, affects them not; unrewarded uprightness brings them regret. Nothing but profit is prized.”

“Man, being essentially active, must find in activity his joy, as well as his beauty and glory; and labor, like every thing else that is good, is its own reward.”

“The rewards for being sane may not be very many, but knowing what's funny is one of them.”

“Virtue is indeed its own noblest reward; yet the dead find it sweet, when the fame of their lives is remembered among the living and oblivion does not swallow up their praises.”
Ipsa quidem virtus sibimet pulcherrima merces; dulce tamen venit ad manis, cum gratia vitae durat apud superos nec edunt oblivia laudem.

“743. As Virtue is its own Reward, so Vice is its own Punishment.”

“Crimes, like Virtues, are their own Rewards.”

“[Atheism] believes that truth for truth's sake is the highest ideal and that virtue is its own reward.”

“Nature has color-coded groups of individuals so that statistically reliable predictions of their adaptability to intellectual rewarding and effective lives can easily be made and profitably used by the pragmatic man-in-the street.”

“Nineteenth-century California rewarded only a few of its brotherhood, but it rewarded them as deliriously as an ancient king in an ancient myth would reward.”

“I am sensible how much nobler it is to place the reward of virtue in the silent approbation of one's own breast than in the applause of the world. Glory ought to be the consequence, not the motive of our actions.”
Meminimus quanto maiore animo honestatis fructus in conscientia quam in fama reponatur. Sequi enim gloria, non appeti debet.