Don't let your brain interfere with your heart.

This is a question too difficult for a mathematician. It should be asked of a philosopher"(when asked about completing his income tax form)

The thinking it took to get us into this mess is not the same thinking that is going to get us out of it.

It is strange to be known so universally and yet to be so lonely.

The solution to this problem lies in the heart of mankind.

Time and space are not conditions of existence, time and space is a model for thinking

It seems to me an utterly futile task to prescribe rules and limitations for the conduct of war. War is not a game; hence one cannot wage war by rules as one would in playing games. Our fight must be against war itself. The masses of people can most effectively fight the institution of war by establishing an organization for the absolute refusal of military service.