Lao Tzu: War as futile death wish & collective funeral

One who would guide a leader of men in
the uses of life
Will warn him against the use of arms for
conquest.
Even the finest arms are an instrument of
evil;
An army's harvest is a waste of thorns
In time of war men, civilized in peace,
Turn from their higher to their lower
nature.
But triumph is not beautiful.
He who thinks a triumph beautiful
Is one with a will to kill.
The death of a multitude is cause for
mourning
Conduct your triumph as a funeral.

- Lao Tzu