We each exist for but a short time, and in that time explore but a small part of the whole universe
Stephen HawkingMaybe I'm being a bit harsh on philosophers, but they have not been very kind to me... I have been variously called nominalist, an instrumentalist, a positivist, a realist, and several other ists. The technique seems refutation by denigration: If you can attach a label to my approach, you don't have to say what is wrong with it... I am sure that Einstein, Heisenberg and Dirac didn't worry about whether they were realists or instrumentalists.
Stephen HawkingTime and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.
Stephen Hawking