"The first effect of the mind growing cultivated is that processes once multiple get to be performed in a single act. Lazarus has called this the progressive "condensation" of thought. ... Steps really sink from sight. An advanced thinker sees the relations of his topics is such masses and so instantaneously that when he comes to explain to younger minds it is often hard ... Bowditch, who translated and annotated Laplace's MÃ©chanique CÃ©leste, said that whenever his author prefaced a proposition by the words "it is evident," he knew that many hours of hard study lay before him."

-- William James

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