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Pythagoras asks that we not let a friend go lightly, for whatever reason. Instead, we should stay with a friend as long as we can, until we're compelled to abandon him completely against our will. It's a serious thing to toss away money, but to cast aside a person is even more serious. Nothing in human life is more rarely found, nothing more dearly possessed. No loss is more chilling or more dangerous than that of a friend.
