Comedy aims at representing men as worse, Tragedy as better than in actual life.

The body is most fully developed from thirty to thirty-five years of age, the mind at about forty-nine.

The pleasures arising from thinking and learning will make us think and learn all the more. 1153a 23

The chief forms of beauty are order and symmetry and definiteness, which the mathematical sciences demonstrate in a special degree.

Happiness, then, is found to be something perfect and self-sufficient, being the end to which our actions are directed.

Metaphysics is universal and is exclusively concerned with primary substance. ... And here we will have the science to study that which is, both in its essence and in the properties which it has.

Character gives us qualities, but it is in our actions — what we do — that we are happy or the reverse.