Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

Science without religion is lame. Religion without science is blind.

Reality is merely an illusion, albeit a very persistent one.

A theory is the more impressive the greater the simplicity of its premises, the more different things it relates, and the more extended its area of applicability.

It can scarcely be denied that the supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience.

The faster you go, the shorter you are.