Some things are of greater value than the price which we pay for them. You buy of a physician life and good health, the value of which cannot be estimated in money; from a teacher you buy the education of a gentleman and mental culture.

That which you esteem so highly, that by which you think that you are made rich and powerful, owns but the shabby title of “house” or “money;” but when you have given it away, it becomes a benefit.

Seneca discusses the widespread ingratitude of politicians toward their country and fellow citizens. Which raises the obvious question: why is it so difficult to find virtuous politicians?

Just as the stomach, when disordered by disease, turns every kind of sustenance into a source of pain, so whatever you entrust to an ill-regulated mind becomes to it a burden, an annoyance, and a source of misery.

A benefit is a voluntary act, but to do good to oneself is an instinctive one.

Diogenes was far more powerful, far richer even than Alexander, who then possessed everything; for there was more that Diogenes could refuse to receive than that Alexander was able to give.

The wise person begins everything with the saving clause, “If nothing shall occur to the contrary.”

We proceed in the way in which reason, not absolute truth, directs us.

A good conscience is of value on the rack.

While all other animals have sufficient strength to protect themselves, man is covered by a soft skin, has no powerful teeth or claws with which to terrify other creatures, but weak and naked by himself is made strong by union.