No one would choose a friendless existence on condition of having all the other things in the world.

There is a cropping-time in the races of men, as in the fruits of the field; and sometimes, if the stock be good, there springs up for a time a succession of splendid men; and then comes a period of barrenness.

It is of itself that the divine thought thinks (since it is the most excellent of things), and its thinking is a thinking on thinking.

The soul never thinks without a picture.

Inasmuch as every family is a part of a state, and these relationships are the parts of a family, and the virtue of the part must have regard to the virtue of the whole, women and children must be trained by education with an eye to the constitution, if the virtues of either of them are supposed to make any difference in the virtues of the state. And they must make a difference: for the children grow up to be citizens, and half the free persons in a state are women.

Education and morals make the good man, the good statesman, the good ruler.

...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.