Physicist Quotes and aphorisms about questions Albert Einstein Stephen Hawking Stephen Hawking Stephen Hawking Stephen Hawking Stephen Hawking Richard P. Feynman ,, I think that when we know that we actually do live in uncertainty, then we ought to admit it; it is... Richard P. Feynman ,, We get the exciting result that the total energy of the universe is zero. Why this should be so is ... Michio Kaku Michio Kaku