Xunzi frames this practice around relationships, besting Linwu’s technical arguments, in a debate on this practice from the Xunzi. A philosopher critical of this practice analogized it to calling something black when it is a little black but calling it white when it is very black. Mencius likened this practice to climbing a tree in search of fish. A text likens the variety of this practice to how water flows differently on different ground and thus “retains no constant shape.” “Impartial concern” is paired with a (*) condemnation of this practice in the ten doctrines of Mozi, who ran simulations of this practice with Lǔ Bān. A treatise on this practice discusses the “Nine Situations” and claims that this practice is always based on deception. (10[1])For 10 points, (10[1])the maxim “know thyself, know thy enemy” comes from a treatise on what practice by Sun Tzu? ■END■