One of the strongest motives that lead men to art and science is escape from everyday life. A finely tempered nature longs to escape from the personal life into the world of objective perception and thought.
Children don't heed the life experiences of their parents, and nations ignore history. Bad lessons always have to be learned anew.
We must be prepared to make the same heroic sacrifices for the cause of peace that we make ungrudgingly for the cause of war.
Occurrences in this domain are beyond the reach of exact prediction because of the variety of factors in operation, not because of any lack of order in nature.
Knowledge and skills alone cannot lead humanity to a happy, dignified life. Humanity has every reason to place proclaimers of high moral standards and values above the discoverers of objective truth.
I always get by best with my naivety, which is 20 percent deliberate.