When you are lonely, when you feel yourself an alien in the world, play Chess. This will raise your spirits and be your counselor in war

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.

Thinking is different from perceiving and is held to be in part imagination, in part judgment

The true nature of a thing is the highest it can become.

The most perfect political community is one in which the middle class is in control, and outnumbers both of the other classes.

So it is clear that the search for what is just is a search for the mean; for the law is the mean.

And yet the true creator is necessity, which is the mother of invention.