"Pride, like laudanum and other poisonous medicines, is beneficial in small, though injurious in large, quantities. No man who is not pleased with himself, even in a personal sense, can please others."

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It was a great step in science when men became convinced that, in order to understand the nature of things, they must begin by asking, not whether a thing is good or bad, noxious or beneficial, but of what kind it is? And how much is there of it? Quality and Quantity were then first recognised as the primary features to be observed in scientific inquiry.

— James Clerk Maxwell