The only true wisdom is in knowing you know nothing.

Where there is shouting, there is no true knowledge.

People won't have time for you if you are always angry or complaining.

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.

People who boast about their I.Q. are losers.

The most important knowledge is that which guides the way you lead your life.

If you can't explain it to a six year old, you don't understand it yourself.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

We should seek the greatest value of our action.