There is a great difference between believing in something and believing in it again.

You believe I run after the strange because I do not know the beautiful; no, it is because you do not know the beautiful that I seek the strange.

We are obliged to regard many of our original minds as crazy at least until we have become as clever as they are.

Non cogitant, ergo non sunt.

With God thoughts are colors, with us they are pigments-even the most abstract one may be accompanied by physical pain.

He was always smoothing and polishing himself, and in the end he became blunt before he was sharp.

I have often noticed that when people come to understand a mathematical proposition in some other way than that of the ordinary demonstration, they promptly say, "Oh, I see. That's how it must be." This is a sign that they explain it to themselves from within their own system.