Men ought either to be indulged or utterly destroyed, for if you merely offend them they take vengeance, but if you injure them greatly they are unable to retaliate, so that the injury done to a man ought to be such that vengeance cannot be feared. – Niccolo Machiavelli

Men are so simple and so much inclined to obey immediate needs that a deceiver will never lack victims for his deceptions. – Niccolo Machiavelli