For what one has to learn to do, we learn by doing.

What the statesman is most anxious to produce is a certain moral character in his fellow citizens, namely a disposition to virtue and the performance of virtuous actions.

But what is happiness? If we consider what the function of man is, we find that happiness is a virtuous activity of the soul.

The true end of tragedy is to purify the passions.

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

When you ask a dumb question, you get a smart answer.

A friend is a second self, so that our consciousness of a friend's existence...makes us more fully conscious of our own existence.