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Continue to ChatA month's intelligent instruction in the theory of numbes ought to be twice as instructive, twice as useful, and at least 10 times as entertaining as the same amount of 'calculus for engineers'. - G. H. Hardy from https://whatsmyquote.com/quote/a-month-s-intelligent-instruction-in-the-theory-of-numbes-ought-to-be-twice-as-instructive-twice-as-useful-and