Intelligence is not the ability to store information, but to know where to find it.

The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine religiosity does not lie through the fear of life, and the fear of death, and blind faith, but through striving after rational knowledge.

Women marry men hoping they will change. Men marry women hoping they will not. So each is inevitably disappointed.

The only sure way to avoid making mistakes is to have no new ideas.

If the answer is simple, God is speaking.

If my theory of relativty is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say I am a German and Germany will declare that I am a Jew.

I want to know God's thoughts - the rest are mere details.