To Demonicus (5-6)

Therefore, I have not invented a hortatory[*] exercise, but have written a moral treatise; and I am going to counsel you on the objects to which young men should aspire and from what actions they should abstain, and with what sort of men they should associate and how they should regulate their own lives. For only those who have travelled this road in life have been able in the true sense to attain to virtue—that possession which is the grandest and the most enduring in the world.

For beauty is spent by time or withered by disease; wealth ministers to vice rather than to nobility of soul, affording means for indolent living and luring the young to pleasure; strength, in company with wisdom, is, indeed, an advantage, but without wisdom it harms more than it helps its possessors, and while it sets off the bodies of those who cultivate it, yet it obscures the care of the soul[*].