Do you believe in immortality? No, and one life is enough for me.

I'd rather be an optimist and a fool than a pessimist and right.

Am I, or the others crazy?

Insofar as mathematics is true, it does not describe the real world. Insofar as it describes the real world, it is not true.

I assert that the cosmic religious experience is the strongest and the noblest driving force behind scientific research.

When I'm judging a theory, I ask myself whether, if I were God, I would have arranged the world in such a way.

The history of scientific and technical discovery teaches us that the human race is poor in independent and creative imagination. Even when the external and scientific requirements for the birth of an idea have long been there, it generally needs an external stimulus to make it actually happen; man has, so to speak, to stumble right up against the thing before the idea comes.