We cannot despair about mankind knowing that Mozart was a man.

A model should be as simple as it can be but no simpler

The most important human endeavor is the striving for morality in our actions.

The history of scientific and technical discovery teaches us that the human race is poor in independent and creative imagination.

Life is like riding a bicycle. If you want to stay balanced you've got to keep moving forward.

Time has no independent existence apart from the order of events by which we measure it.

This is what the painter, the poet, the speculative philosopher, and the natural scientists do, each in his own fashion.