Omno
Do not thwart an enemy retreating home. If you surround the enemy, leave an outlet; do not press an enemy that is cornered. These are the principles of warfare.
Unless it is personal then I recommend
The greatest happiness is to scatter your enemy, to drive him before you, to see his cities reduced to ashes, to see those who love him shrouded in tears, and to gather into your bosom his wives and daughters.