One can have no smaller or greater mastery than mastery of oneself.

Time stays long enough for anyone who will use it.

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

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

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.

Realize that everything connects to everything else.

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

The noblest pleasure is the joy of understanding.

Why does the eye see a thing more clearly in dreams than the imagination when awake?