"Physicists often use the term elegant to describe a solution to a problem that is as powerful as it is simple. It's a solution which cuts to the heart of an important problem with such clarity that it almost leaves no doubt that the solution is either right or at least on the right track. And string theory is just that kind of solution. It provides the first way of putting quantum mechanics and general relativity together -- that is, merging the laws of the small and the laws of the large -- and it does it in such a sleek manner that it is quite breathtaking. And the term elegant really describes that kind of solution." Brian Green
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His new picture book, Icarus is wonderful.