The aim of the wise is not to secure pleasure, but to avoid pain.
Masculine republics give way to feminine democracies, and feminine democracies give way to tyranny.
Happiness is a certain activity of soul in conformity with perfect goodness
To learn is a natural pleasure, not confined to philosophers, but common to all men.
A friend is simply one soul in two bodies.
It is unbecoming for young men to utter maxims.