Mere unbelief in a personal God is no philosophy at all.

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

He who cherishes the value of cultures cannot fail to be a pacifist.

In every true searcher of Nature there is a kind of religious reverence, for he finds it impossible to imagine that he is the first to have thought out the exceedingly delicate threads that connect his perceptions

Only six men in the world know about relativity. I am not one of them. When I ask them to explain, they confused me.

I have no special talent. I am only passionately curious. The important thing is to not stop questioning. Curiousity has its own reason for existing.

I never commit to memory anything that can easily be looked up in a book