... a person who is religiously enlightened appears to me to be one who has, to the best of his ability, liberated himself from the fetters of his selfish desires and is preoccupied with thoughts, feelings, and aspirations to which he clings because of their superpersonal value.

Nuclear power is one hell of a way to boil water

If I give you a pfennig, you will be one pfennig richer and I'll be one pfennig poorer. But if I give you an idea, you will have a new idea, but I shall still have it too.

Fantasie is belangrijker dan kennis, want kennis is begrensd.

We act as though comfort and luxury were the chief requirements of life. All that we need to make us happy is something to be enthusiastic about.

Necessity is the mother of all invention.

We must remember that we do not observe nature as it actually exists, but nature exposed to our methods of perception. The theories determine what we can or cannot observe...Reality is an illusion, albeit a persistent one.