A democracy when put to the strain grows weak, and is supplanted by Oligarchy.

...in this way the structure of the universe- I mean, of the heavens and the earth and the whole world- was arranged by one harmony through the blending of the most opposite principles.

With the truth, all given facts harmonize; but with what is false, the truth soon hits a wrong note.

Friendship is communion.

The man who confers a favour would rather not be repaid in the same coin.

Thus then a single harmony orders the composition of the whole...by the mingling of the most contrary principles.

All that we do is done with an eye to something else.