Science is a wonderful thing if one does not have to earn one’s living at it.

Without deep reflection one knows from daily life that one exists for other people.

In order to be an immaculate member of a flock of sheep, one must above all be a sheep oneself.

The most incomprehensible thing about the world is that it is comprehensible.

It should be possible to explain the laws of physics to a barmaid.

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

Let every man be respected as an individual and no man idolized.

My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind.

You can never solve a problem on the level on which it was created.

I never think of the future – it comes soon enough.

Human beings must have action; and they will make it if they cannot find it.

Everything should be made as simple as possible, but not simpler.

Politics is for the present, but an equation is for eternity.

The whole of science is nothing more than a refinement of everyday thinking.

I believe that a simple and unassuming manner of life is best for everyone, best both for the body and the mind.

Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.

I want to go when I want. It is tasteless to prolong life artificially. I have done my share; it is time to go. I will do it elegantly.

The high destiny of the individual is to serve rather than to rule.

He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.

I love to travel, but hate to arrive.