The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.

By an application of the theory of relativity to the taste of readers, today in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be represented as a bête noire, the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!

I see a pattern, but my imagination cannot picture the maker of that pattern. I see a clock, but I cannot envision the clockmaker. The human mind is unable to conceive of the four dimensions, so how can it conceive of a God, before whom a thousand years and a thousand dimensions are as one?

Capitalism creates a huge community of producers who are unceasingly striving to deprive each other of the fruits of their collective labor, and an oligarchy that cannot be effectively checked even by a democratically organized society....the subjugation is not by force but because the privileged class has long ago established a system of values by which the people were thenceforth, to a large extent unconsciously, guided in their social behavior.

To the extent math refers to reality, we are not certain to the extent we are certain, math does not refer to reality.

Galileo - the father of modern physics - indeed of modern science.

The single most important decision any of us will ever make is whether or not to believe the universe is friendly.