You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.

Measure what can be measured, and make measurable what cannot be measured.

All truths are easy to understand once they are discovered; the point is to discover them.

I have never met a man so ignorant that I couldn't learn something from him.

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.

I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forego their use.

The laws of nature are written by the hand of God in the language of mathematics.

Knowing thyself, that is the greatest wisdom.

To understand the Universe, you must understand the language in which it's written, the language of Mathematics.

In the sciences, the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man.

To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'.

I don't speak just so I can be heard

Dream-start with dream. Start tonight-become who you want-dream big!" He became animated at this point, "No money needed for dreams. Dreams are free.

German equality of rights is the prerequisite for any participation on Germany's part in international conventions and agreements.

Love passed, the Muse appeared, the weather of mind got clarity new-found; now free, I once more weave together emotion, thought, and magic sound.

If all men and women were kept at some useful employment there would be less sorrow and wickedness in the world.

Do not burn yourselves out. Be as I am - a reluctant enthusiast... a part-time crusader, a half-hearted fanatic. Save the other half of yourselves and your lives for pleasure and adventure.

Everytime I ask what time it is, I get a different answer.

If you wait for inspiration, you're not a writer, but a waiter.

I like to live life in an understated way because that's who I am - an ordinary guy who has experienced an extraordinary journey.

We are bound to earth by desire and also to God, heaven, and the angels. A slave is a slave whether to man, to God, or to angels.