To sense that behind anything that can be experienced there is a something that our mind cannot grasp and whose beauty and sublimity reaches us only indirectly and as a feeble reflection, this is religiousness. In this sense I am religious.

The armament industry is indeed one of the greatest dangers that beset mankind. It is the hidden evil power.

Time and space are modes by which we think and not conditions in which we live.

Creativity is the residue of time wasted.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

The thinking that got us to where we are is not the thinking that will get us to where we want to be.

The only race I know is the human one.