Optimism doesn't wait on facts. It deals with prospects. Pessimism is a waste of time.

If there is a conflict between the easy drift of prosperity and the ordeal of peace, the ordeal of peace comes first.

The essence of man is imperfection.

All things are possible, once enough human beings realize that everything is at stake.

We are wide-eyed in contemplating the possibility that life may exist elsewhere in the universe, but we wear blinders when contemplating the possibilities of life on earth.

Nothing is more essential in the treatment of serious disease than the liberation of the patient from panic and foreboding.

Education tends to be diagrammatic and categorical, opening up no sluices in the human imagination on the wonder of the beauty of our unique estate in the cosmos. Little wonder that it becomes so easy for our young to regard human hurt casually or to be uninspired by the magic of sensitivity.