"I have tried to avoid long numerical computations, thereby following Riemann's postulate that proofs should be given through ideas and not voluminous computations."

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The destiny of man is not measured by material computations. When great forces are on the move in the world, we learn we’re spirits—not animals…. There’s something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty.

— Winston Churchill