"How could man rejoice in victory and delight in the slaughter of men?"

This quote by Lao Tzu is a reflection on the nature of war and violence. He is questioning how it is possible for human beings to take pleasure in the damage of other humans. He is suggesting that it is not natural for human beings to take joy in the death of others, and that it is a sign of an absence of compassion and understanding. He is also recommending that war and violence are not essential for humans to survive, which there are other ways to deal with disputes. He is motivating us to consider the consequences of our actions and to strive for peace and understanding instead of violence and damage. Eventually, Lao Tzu is asking us to consider the morality of our actions and to strive for a more peaceful and harmonious world.