A vivid image compels the whole body to follow.

It is possible to fail in many ways...while to succeed is possible only in one way.

We are the sum of our actions, and therefore our habits make all the difference.

The happy life is regarded as a life in conformity with virtue. It is a life which involves effort and is not spent in amusement.

Man, as an originator of action, is a union of desire and intellect.

In the Laws it is maintained that the best constitution is made up of democracy and tyranny, which are either not constitutions at all, or are the worst of all. But they are nearer the truth who combine many forms; for the constitution is better which is made up of more numerous elements. The constitution proposed in the Laws has no element of monarchy at all; it is nothing but oligarchy and democracy, leaning rather to oligarchy.

The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary.