If I could remember the names of all these particles, I'd be a botanist.

Almost all the other fellows do not look from the facts to the theory but from the theory to the facts; they cannot get out of the network of already accepted concepts; instead, comically, they only wriggle about inside.

If I had it [life] to do all over again, I'd have been a plumber.

I should much rather see a reasonable agreement with Arabs based upon living together than the creation of a Jewish state.

You imagine that I look back on my life's work with calm satisfaction. But from nearby it looks quite different. There is not a single concept of which I am convinced that it will stand firm, and I feel uncertain whether I am in general on the right track.

You cannot prepare for war and peace at the same time.

E=mc2. Energy equals mass times the speed of light squared