The more I learn of physics, the more I am drawn to metaphysics.

Nationalism, on my opinion, is nothing more than an idealistic rationalization for militarism and aggression.

I am neither especially clever nor especially gifted. I am only very, very curious.

Then there are the fanatical atheists whose intolerance is of the same kind as the intolerance of the religious fanatics and comes from the same source.

Generations to come will find it difficult to believe that a man such as Gandhi ever walked the face of this earth.

Time and space are modes by which we think and not conditions in which we live.

What separates me from most so-called atheists is a feeling of utter humility toward the unattainable secrets of the harmony of the cosmos.