I am not an atheist. I do not know if I can define myself as a pantheist. The problem involved is too vast for our limited minds.

Combinatory play seems to be the essential feature in productive thought.

If the bee disappeared off the surface of the globe, then man would have only four years of life left. No more bees, no more pollination, no more plants, no more animals, no more man.

I like to think the moon is there even if I am not looking at it.

It is a very high goal which, with our weak powers, we can reach only very inadequately, but which gives a sure foundation to our aspirations and valuations.

Education is what remains after one has forgotten what one has learned in school.

While it is true that an inherently free and scrupulous person may be destroyed, such an individual can never be enslaved or used as a blind tool.