As I look back over the truly crucial events in my life I realize that they were not planned long in advance. Albert Einstein said, 'There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is.'

But in physics I soon learned to scent out the paths that led to the depths, and to disregard everything else, all the many things that clutter up the mind, and divert it from the essential. The hitch in this was, of course, the fact that one had to cram all this stuff into one's mind for the examination, whether one liked it or not.

Our entire much-praised technological progress, and civilization generally, could be compared to an axe in the hand of a pathological criminal.

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.

The most important question a person can ask is, "Is the Universe a friendly place?

This crippling of individuals I consider the worst evil of capitalism. Our whole educational system suffers from this evil. An exaggerated competitive attitude is inculcated into the student, who is trained to worship acquisitive success as a preparation for his future.

If you want to live a happy life, tie it to a goal, not to people or objects.