Lü-shih ch’un-ch’iu a Chinese anthology of late Warring States (403–221 B.C.) philosophical writings. It was compiled by a patron, Lü Pu-wei, who became chancellor of the state of Ch’in in about 240 B.C. As the earliest example of the encyclopedic genre, and often associated with the later Huai Nan Tzu, it includes the full spectrum of philosophical schools, and covers topics from competing positions on human nature to contemporary farming procedures. An important feature of this work is its development of correlative yin–yang and five-phases vocabulary for organizing the natural and human processes of the world, positing relations among the various seasons, celestial bodies, tastes, smells, materials, colors, geographical directions, and so on. See also HUAI NAN TZU; WU-HSING; YIN, YANG. R.P.P. & R.T.A.