Man must rise above the Earth - to the top of the atmosphere and beyond - for only thus will he fully understand the world in which he lives.

It is better to be at odds with the whole world than, being one, to be at odds with myself.

All men's souls are immortal, but the souls of the righteous are immortal and divine.

There is no learning without remembering.

If you will take my advice you will think little of Socrates, and a great deal more of truth.

A multitude of books distracts the mind.

I am a fool, but I know I'm a fool and that makes me smarter than you.