So long as there are men, there will be wars.

If God has created the world, his primary worry was certainly not to make its understanding easy for us

The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.

While I am a convinced pacifist there are circumstances in which I believe the use of force is appropriate - namely, in the face of an enemy unconditionally bent on destroying me and my people.

Anyone can repeat a technical explanation they read in a text-book or blog post.

I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance [spukhafte Fernwirkungen].

I sometimes ask myself how it came about that I was the one to develop the theory of relativity. The reason, I think, is that a normal adult never stops to think about problems of space and time. These are things which he has thought about as a child. Bu t my intellectual development was retarded,as a result of which I began to wonder about space and time only when I had already grown up.