Friendship is essentially a partnership.

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.

It is the mark of an educated mind to expect that amount of exactness which the nature of the particular subject admits. It is equally unreasonable to accept merely probable conclusions from a mathematician and to demand strict demonstration from an orator.

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

If one way be better than another, that you may be sure is nature's way.

Wise people have an inward sense of what is beautiful, and the highest wisdom is to trust this intuition and be guided by it.

To Thales the primary question was not what do we know, but how do we know it.