What is morally wrong can never be advantageous, even when it enables you to make some gain that you believe to be to your advantage. The mere act of believing that some wrongful course of action constitutes an advantage is pernicious.
Each part of life has its own pleasures. Each has its own abundant harvest, to be garnered in season. We may grow old in body, but we need never grow old in mind and spirit. No one is as old as to think he or she cannot live one more year.
There is, I know not how, a certain presage, as it were, of a future existence; and this takes the deepest root, and is most discoverable, in the greatest geniuses and most exalted souls.
If you pursue good with labor, the labor passes away but the good remains; if you pursue evil with pleasure, the pleasure passes away and the evil remains.
In this statement, my Scipio, I build on your own admirable definition, that there can be no community, properly so called, unless it be regulated by a combination of rights. And by this definition it appears that a multitude of men may be just as tyrannical as a single despot and indeed this is the most odious of all tyrannies, since no monster can be more barbarous than the mob, which assumes the name and mask of the people.
What greater or better gift can we offer the republic than to teach and instruct our youth?
[Lat., Quod enim munus reiplicae afferre majus, meliusve possumus, quam si docemus atque erudimus juventutem?]
A sensual and intemperate youth hands over a worn-out body to old age.
[Lat., Libidinosa etenim et intemperans adolescentiam effoetum corpus tradit senectuti.]