The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

Wisdom is the daughter of experience.

It's not what you are that holds you back, it's what you think you are not.

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.

There's no one thing that's true. It's all true.

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.

Always go too far, because that's where you'll find the truth.