An expert is a person who has few new ideas; a beginner is a person with many.

Problems cannot be solved by thinking within the framework in which the problems were created.

The most beautiful experience in the world is the experience of the mysterious.

I do not at all believe in human freedom in the philosophical sense... Schopenhauer’s saying, ‘A man can do what he wants, but not will what he wants,’ has been a very real inspiration to me since my youth; it has been a continual consolation in the face of life’s hardships, my own and others’, and an unfailing wellspring of tolerance. This realization mercifully mitigates the easily paralyzing sense of responsibility and prevents us from taking ourselves and other people too seriously; it is conducive to a view of life which, in part, gives humour its due.

The restriction of knowledge to an elite group destroys the spirit of the society and leads to its intellectual impoverishment.

Out yonder there was this huge world...which stands before us like a great eternal riddle.

People like you and I, though mortal of course like everyone else, do not grow old no matter how long we live.