“The Radical Sun Tzu”, Tanner Greer2015-01-02 (; similar)⁠:

Timeless as it may seem, however, the Sunzi was the product of problems experienced at a specific time and a specific place. It is my belief that we cannot really understand the Sunzi if we do not first understand the world from which it came—the world of the Warring States.2 A few historians and scholars of Chinese thought have written this sort of analysis; the best of these attempts to place the Sunzi within its historical context are usually focused on the broad, macro-historical trends that divided the Spring and Autumn period that preceded the Sunzi from the Warring States period that gave birth to it. From this perspective the Sunzi and the other military manuals that followed it were the natural product of a world torn asunder by wars waged on an ever increasing scale between large infantry armies fighting in the name of territorial, bureaucratized states.3 There is, however, more to the Sunzi’s historical setting than the institutional history of ancient China. Just as important is the intellectual milieu of early Warring States times. The compilers of the Sunzi were not the first Chinese to write about war. When read as a response to these earlier voices, the Sunzi’s vision of war and politics is nothing less than radical.

…Its revolutionary nature only becomes clear when we see what it was written in response to. The place to turn is the Zuo Zhuan, China’s oldest narrative historical account and one of the few preserves of the old Spring and Autumn ethos. One of its better known dictums reads:

The great affairs of state are sacrifice and warfare.5

Meyer comments on the contrast between the two statements:

[In the Sunzi] all mention of sacrifice is eliminated, telegraphing the text’s contention that martial matters must be viewed in purely material terms. Rather than “warfare”, the “military” is held up as the great affair of state, implying (as the text goes on to elaborate) that there are uses for military power beyond the ‘honorable’ contest of arms. Moreover, the word that the Sunzi uses by reference to the “military”, bing (兵), does not evoke the aristocratic charioteer but the common foot solider, who had become the backbone of the Warring States army.6

The Sunzi’s insistence that military methods were more important to the state’s survival than sacrifice was not merely radical—it was nonsensical. In the early Chinese world view, sacrifice and warfare could not be separated from each other. As with the Aztecs, Maya, and many other premodern peoples, for the Chinese of Zhou times, warfare was a sacrificial ritual.