Nature creates nothing without a purpose.

The true nature of a thing is the highest it can become.

Art not only imitates nature, but also completes its deficiencies.

It is just that we should be grateful, not only to those with whose views we may agree, but also to those who have expressed more superficial views; for these also contributed something, by developing before us the powers of thought.

To enjoy the things we ought and to hate the things we ought has the greatest bearing on excellence of character.

The intention makes the crime.

Knowing yourself is the beginning of all wisdom.