It seems to me that the idea of a personal God is an anthropological concept which I cannot take seriously. I feel also not able to imagine some will or goal outside the human sphere. My views are near those of Spinoza: admiration for the beauty of and belief in the logical simplicity of the order which we can grasp humbly and only imperfectly. I believe that we have to content ourselves with our imperfect knowledge and understanding and treat values and moral obligations as a purely human problem-the most important of all human problems.

We know nothing at all. All our knowledge is but the knowledge of schoolchildren. The real nature of things we shall never know.

No worthy problem is ever solved within the plane of its original conception.

In the middle of adversity there is great opportunity.

For an idea which, at first, does not seem absurd, there is no hope.

I think that a particle must have a separate reality independent of the measurements. That is an electron has spin, location and so forth even when it is not being measured. I like to think that the moon is there even if I am not looking at it.

If someone feels that he has never made a mistake in his life, it only means that he has never tried anything new in his life.