How do I work? I grope.

You can't solve problems with the same thinking that caused them.

Children don’t heed the life experiences of their parents, and nations ignore history. Bad lessons always have to be learned anew.

I believe that Gandhi’s views were the most enlightened of all the political men of our time.

If you can't explain what you are doing to a nine-year-old, then either you still don't understand it very well, or it's not all that worthwile in the first place.

When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than any talent for abstract, positive knowledge.

A permanent peace cannot be prepared by threats but only by the honest attempt to create a mutual trust. However strong national armaments may be, they do not create military security for any nation nor do they guarantee the maintenance of peace.