The only true wisdom is in knowing you know nothing.

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

Life is like riding a bicycle. To keep your balance, you must keep moving.

The more I see, the less I know for sure.

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.

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

I have no special talents. I am only passionately curious.

Once we accept our limits, we go beyond them.