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Continue to ChatWhereas, to borrow an illustration from mathematics, life was formerly an equation of, say, 100 unknown quantities, it is now one of 99 only, inasmuch as memory and heredity have been shown to be one and the same thing. - Samuel Butler from https://whatsmyquote.com/quote/whereas-to-borrow-an-illustration-from-mathematics-life-was-formerly-an-equation-of-say-100-unknown-quantities/page/6