I consider it a mark of great prudence in a man to abstain from threats or any contemptuous expressions, for neither of these weaken the enemy, but threats make him more cautious, and the other excites his hatred, and a desire to revenge himself. – Niccolo Machiavelli
Men are so simple and yield so readily to the desires of the moment that he who will trick will always find another who will suffer to be tricked. – Niccolo Machiavelli