Tao Te Ching Chapter 68

The brave soldier is not violent;

The good fighter does not lose his temper;

The great conqueror does not fight (on small issues);

The good user of men places himself below others.

- This is the virtue of not-contending,

Is called the capacity to use men,

Is reaching to the height of being

Mated to Heaven, to what was of old.

Tao Te Ching