The Chung Yung, or 'Doctrine of the Mean' (or as Julien renders it 'L'Invariable Milieu,' or Williams, 'The Just Medium'), was also formerly a part of the 'Book of Rites' and was compiled about 388 B.C. by K'ung Chi, the grandson of Confucius. Although in some respects the most elaborate treatise in the series (33 chapters), it is merely an enlargement upon certain general principles of the writer's grandfather concerning the motives and conduct of an ideal perfect man who 'without deflection or bias' pursues 'a course which never varies in direction.' Though in general rather monotonous there are some sprightly passages, for example, the following:
Mankind is divided into three classes: (1) shing, or sages; (2) hien, or worthies; (3) yu, or worthless.
Sincerity is described as "the origin or consummation of all things; without it, there would be nothing. It is benevolence by which a man's self is perfected, and knowledge by which he perfects others." In another place we read 'one sincere wish would move heaven and earth.' The description which K'ung Chi has given of a true sage was probably intended to elevate the character of his grandfather to this height—a standard of excellence so high as to be unattainable by unaided human nature.
The Lun Yu, or Analects of Confucius, is a record of the words and actions of the Sage compiled by the collective body of his first apostles