I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.

The only way to avoid mistakes is to have no new ideas.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

对付一个不自由的世界的唯一方法就是变得如此绝对自由，以至于你的存在本身就是一种反叛行为。