Because the rich are generally few in number, while the poor are many, they appear to be antagonistic, and as the one or the other prevails they form the government. Hence arises the common opinion that there are two kinds of government - democracy and oligarchy.

A change in the shape of the body creates a change in the state of the soul.

We assume therefore that moral virtue is the quality of acting in the best way in relation to pleasures and pains, and that vice is the opposite.

Yet the true friend of the people should see that they be not too poor, for extreme povery lowers the character of the democracy; measures therefore should be taken which will give them lasting prosperity; and as this is equally the interest of all classes, the proceeds of the public revenues should be accumulated and distributed among its poor, if possible, in such quantities as may enable them to purchase a little farm, or, at any rate, make a beginning in trade or husbandry.

The mass of mankind are evidently slavish in their tastes, preferring a life suitable to beasts.

When people are friends, they have no need of justice, but when they are just, they need friendship in addition.

While most of those who hold that the whole heaven is finite say that the earth lies at the center, the philosophers of Italy, the so-called Pythagoreans, assert the contrary. They say that in the middle there is fire, and that the earth is one of the stars, and by its circular motion round the center produces night and day.