A human being is a naturally political [animal].

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.

...happiness is an activity and a complete utilization of virtue, not conditionally but absolutely.

A change in the shape of the body creates a change in the state of the soul.

The vices respectively fall short of or exceed what is right in both passions and actions, while virtue both finds and chooses that which is intermediate.

Teaching is the highest form of understanding.

The vigorous are no better than the lazy during one half of life, for all men are alike when asleep.