Our entire much-praised technological progress, and civilization generally, could be compared to an axe in the hand of a pathological criminal.

God is clever, but not dishonest.

The series of integers is obviously an invention of the human mind, a self-created tool which simplifies the ordering of certain sensory experiences.

If only I had known, I should have become a watchmaker.

Don't do anything that goes against your conscience, even if your country says so.

One has to realize that the powerful industrial groups concerned in the manufacture of arms are doing their best in all countries to prevent the peaceful settlement of international disputes, and that rulers can achieve this great end only if they are sure of the vigorous support of the majority of their peoples.

How can cosmic religious feeling be communicated from one person to another, if it can give rise to no definite notion of a God and no theology? In my view, it is the most important function of art and science to awaken this feeling and keep it alive in those who are receptive to it.