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

Check out not to become a man or woman of achievement, but instead seek to become a particular person of price.

I have never obtained any ethical values from my scientific work.

Science is a wonderful thing if one does not have to earn one's living at it. One should earn one's living by work of which one is sure one is capable. Only when we do not have to be accountable to anybody can we find joy in scientific endeavor.

If at first the idea is not absurd, then there is no hope for it.

Outer changes always begin with an inner change of attitude.

The individual feels the vanity of human desires and aims, and the nobility and marvelous order which are revealed in nature and in the world of thought. He feels the individual destiny as an imprisonment and seeks to experience the totality of existence as a unity full of significance.