This is the virtue of non-contention and matching the sublimity of Heaven.

Until recent times, the majority of Chinese were as involved with war, whether perpetrator or casualty, as they were with culture. Survival was a continual preoccupation. Students of Kung Fu were taught skills of violence for the protection and survival of themselves and their society; common sense indicates that in times of lethal conflict, provoking fights (contention) is not a recipe for long life.
Confucianism teaches benevolence and the way of civilised interaction; indeed, even in Europe the rules of social etiquette were originally developed as a set of conventions for interacting with real or potential rivals without resorting to violence.
Buddhism teaches respect for all sentient beings, and detachment from desires and Samsara, the illusory world of conflict and emotion.
Taoism teaches the oneness of all things, the union of opposites, and the virtues of non-action (non-contention), living in harmony with the Way and the natural order of things.
Philosophy then, as well as practicality, indicates that a path of non-violence leads to a long and peaceful existence.