There is only one good, knowledge, and one evil, ignorance.

Be as you wish to seem.

Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.

Where there is shouting, there is no true knowledge.

My brain is only a receiver, in the Universe there is a core from which we obtain knowledge, strength and inspiration. I have not penetrated into the secrets of this core, but I know that it exists.

Those who know do not speak, those who speak do not know.

An honest man is always a child.

If you tell the truth, you don't have to remember anything.

I cannot teach anybody anything. I can only make them think.