By giving too much importance to fine actions one may end by paying an indirect but powerful tribute to evil, because in so doing one implies that such fine actions are only valuable because they are rare, and that malice or indifference are far more common motives in the actions of men.
Albert CamusIt is easy to shield the outer body from poisoned arrows, but it is impossible to shield the mind from the poisoned darts that originate within itself. Greed, anger, foolishness and the infatuations of egoism - these four poisoned darts originate within the mind and infect it with deadly poison.
Albert Camus