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

Be the change that you wish to see in the world.

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

Everything you can imagine is real.

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

I am not an Athenian or a Greek, but a citizen of the world.

Reality leaves a lot to the imagination.

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.

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