I speak to everyone in the same way, whether he is the garbage man or the president of the university.

Everything should be made as simple as possible, but no simpler.

There is nothing divine about morality, it is a purely human affair.

Any intelligent fool can make things bigger and more complex. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

I believe that Gandhi's views were the most enlightened of all the political men of our time.

Imagination is more important than knowledge.

Everything is energy and that's all there is to it.

The special theory of relativity owes its origins to Maxwell's equations of the electromagnetic field.

For me the Jewish religion like all other religions is an incarnation of the most childish superstitions.

I wish to do something Great and Wonderful, but I must start by doing the little things like they were Great and Wonderful.

An attempt at visualizing the Fourth Dimension: Take a point, stretch it into a line, curl it into a circle, twist it into a sphere, and punch through the sphere.

I never teach my pupils, I only attempt to provide the conditions in which they can learn.

Fear or stupidity has always been the basis of most human actions.

The economic anarchy of capitalist society as it exists today is, in my opinion, the real source of evil.

Each makes this cosmos and its construction the pivot of his emotional life, in order to find in this way peace and security which he can not find in the narrow whirlpool of personal experience.

Gravitation can't be held responsible for people falling in love.

Once we accept our limits, we go beyond them.

One who scorns the power of intuition will never rise above the ranks of journeyman calculator.

Out of complexity, find simplicity.

The release of atomic power has changed everything except our way of thinking ... the solution to this problem lies in the heart of mankind. If only I had known, I should have become a watchmaker. (1945).