When I have clarified and exhausted a subject, then I turn away from it, in order to go into darkness again.

It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment.

Life stands before me like an eternal spring with new and brilliant clothes.

You know that I write slowly. This is chiefly because I am never satisfied until I have said as much as possible in a few words, and writing briefly takes far more time than writing at length.

Theory attracts practice as the magnet attracts iron.

You have no idea, how much poetry there is in the calculation of a table of logarithms!

There have been only three epoch-making mathematicians, Archimedes, Newton, and Eisenstein.

We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds, so that we cannot completely prescribe its properties a priori.

If others would but reflect on mathematical truths as deeply and as continuously as I have, they would make my discoveries.

Mathematicians stand on each other's shoulders.

I have had my results for a long time: but I do not yet know how I am to arrive at them.

I would much rather be considered wise than smart. But, I still think it is wise to get an education.

Time travel occurs in humans collective subconscious.

Poets are the unacknowledged legislators of the world.

Have any sheep been seen walking out of the Library with seagoing adventurers clinging to their wool?

You have to dream dreams to live dreams.

I keep telling myself I don't practice enough to be a perfectionist. And I don't practice enough to get mad. So my temper has subdued and my attitude is subdued.

Protection of human life can be costly; but so is the neglect of that protection.

It seems to me that the older I get, the more running around I do with less satisfaction, just spinning my wheels.

The fantasy which serves as a support for the figure of the Stalinist Communist is therefore exactly the same as the fantasy which is at work in the Tom and Jerry cartoons.