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The true power of mathematics is not in its complexity, but in its simplicity and elegance.
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
水产养殖的效率不在于生产更多,而在于浪费更少。