Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory.
Stephen HawkingScience can lift people out of poverty and cure disease. That, in turn, will reduce civil unrest.
Stephen HawkingI've noticed that even people who believe in fate look both ways before crossing the street.
Stephen HawkingIt is generally recognised that women are better than men at languages, personal relations and multi-tasking, but less good at map-reading and spatial awareness. It is therefore not unreasonable to suppose that women might be less good at mathematics and physics.
Stephen Hawking