The best aid to give is intellectual aid, a gift of useful knowledge. A gift of knowledge is infinitely preferable to a gift of material things.

To describe an animal as a physico-chemical system of extreme complexityis no doubt perfectly correct, except that it misses out on the animalness of the animal.

It is amazing how much theory we can do without when work actually begins.

Everything can be seen directly except the eye through which we see.

I certainly never feel discouraged. I can't myself raise the winds that might blow us or this ship into a better world. But I can at least put up the sail so that when the winds comes, I can catch it.

I have no doubt that it is possible to give a new direction to technological development, a direction that shall lead it back to the real needs of man, and that also means: to the actual size of man. Man is small, and, therefore, small is beautiful.

Modern man talks of a battle with nature, forgetting that, if he won the battle, he would find himself on the losing side