It 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 CamusIf you keep on excusing, you eventually give your blessing to the slave camp, to cowardly force, to organized executioners, to the cynicism of great political monsters; you finally hand over your brothers.
Albert Camus