Afterward I was certain of only one thing: friendship is hard to define. Epicurus believed it was necessary for a happy life. Aristotle believed it was necessary for a good life. Cicero thought life wasn’t worth living without friends, but that they should be made slowly and cautiously. Montaigne thought friendship occurred once every three hundred years and he was, of course, one of the lucky ones. Oscar Wilde said a friend is one who stabs you in the front, and C. S. Lewis proposed ideograms: if lovers are two people facing each other enraptured by the other’s gaze, then friends are two
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