The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

It is remarkable that a science which began with the consideration of games of chance should have become the most important object of human knowledge.

The pursuit of truth is a noble goal in life.

过去永远不会离开我们；我们把它藏在眼神和声音里。