I do not have to remind you of the rules of fighting. A man well-versed in them will not kill an enemy who is drunk; who is careless about his safety; who has lost his wits; who is not trying to fight back; who is sleeping; who has fallen at your feet asking for mercy; who is defeated and who is frightened. But the sinner who saves himself by killing ruthlessly thousands of other lives must be punished only by death.