No excellent soul is exempt from a mixture of madness.

Happiness is a state of activity.

We work to earn our leisure.

Youth should stay away from all evil, especially things that produce wickedness and ill-will.

We must no more ask whether the soul and body are one than ask whether the wax and the figure impressed on it are one.

Equality is of two kinds, numerical and proportional; by the first I mean sameness of equality in number or size; by the second, equality of ratios.

The true end of tragedy is to purify the passions.