Definition of tragedy: A hero destroyed by the excess of his virtues

The seat of the soul and the control of voluntary movement - in fact, of nervous functions in general, - are to be sought in the heart. The brain is an organ of minor importance.

If the hammer and the shuttle could move themselves, slavery would be unnecessary.

All three states - the Lacedaemonian, the Cretan, and the Carthaginian - nearly resemble one another, and are very different from any others. Many of the Carthaginian institutions are excellent. The superiority of their constitution is proved by the fact that the common people remains loyal to the constitution; the Carthaginians have never had any rebellion worth speaking of, and have never been under the rule of a tyrant.

Plato is my friend, but truth is a better friend.

If happiness is activity in accordance with excellence, it is reasonable that it should be in accordance with the highest excellence.

Think as the wise men think, but talk like the simple people do.