Certainly there is an ancient code of conduct, and certainly its customs were harsher than ours today. But I would venture that we have not wandered so far from those customs so much as put a veneer over them. A warrior’s word is still his bond, and among those who serve side by side, there is nothing so foul as one who lies to his comrades, or leads them into dishonor. The laws of hospitality still forbid those who have shared salt at a man’s table to shed blood on his floor.