The future is an unknown, but a somewhat predictable unknown. To look to the future we must first look back upon the past. That is where the seeds of the future were planted. I never think of the future. It comes soon enough.

A desk, some pads, a pencil, and a large basket -- to hold all of mu mistakes.

I believe my theory of relativity to be true. But it will only be proved for certain in 1981, when I am dead.

Anti-Semitism is nothing but the antagonistic attitude produced in the non-Jew by the Jewish group. This is a normal social reaction. The Jewish group has thrived on oppression and on the antagonism it has forever met in the world... the root cause is their use of enemies they create in order to keep solidarity.

Thought is the organizing factor in man, intersected between the causal primary instincts and the resulting actions.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

But science can only be created by those who are thoroughly imbued with the aspiration toward truth and understanding. This source of feeling, however, springs from the sphere of religion. To this there also belongs the faith in the possibility that the regulations valid for the world of existence are rational, that is, comprehensible to reason. I cannot conceive of a genuine scientist without that profound faith. The situation may be expressed by an image: science without religion is lame, religion without science is blind.