Pure mathematics is, in its way, the poetry of logical ideas.

It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing...

School failed me, and I failed the school. It bored me. The teachers behaved like Feldwebel (sergeants). I wanted to learn what I wanted to know, but they wanted me to learn for the exam. What I hated most was the competitive system there, and especially sports. Because of this, I wasn't worth anything, and several times they suggested I leave.

Every serious scientific worker is painfully conscious of this involuntary relegation to an ever-narrowing sphere of knowledge, which threatens to deprive the investigator of his broad horizon and degrades him to the level of a mechanic.

Man usually avoids attributing cleverness to somebody else unless it is an enemy.

My life is a simple thing that would interest no one. It is a known fact that I was born, and that is all that is necessary.

If we trace out what we behold and experience through the language of logic, we are doing science; if we show it in forms whose interrelashionships are not accessible to our conscious thought but we are intuitively recognized as meaningful, we are doing art.