The most beautiful experience in the world is the experience of the mysterious.

Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.

I want to know all Gods thoughts; all the rest are just details.

Every serious scientific worker is painfully conscious of this involuntary relegation to an ever-narrowing sphere of knowledge, which threatens to deprive the investigator of his broad horizon and degrades him to the level of a mechanic.

Everyone knew it was impossible, until a fool who didn't know came along and did it.

We should take care not to make the intellect our god; it has, of course, powerful muscles, but no personality.

I have only two rules which I regard as principles of conduct. The first is: Have no rules. The second is: Be independent of the opinion of others.