Play the Hsien Ch'ih (Music of the Yellow Emperor) or the Chiu Shao in the wilds of Tung-t'ing, and birds will fly away, beasts will take themselves off, and fishes will dive down below. But men will collect to hear. "Water, which is life to fishes, is death to man. Being differently constituted, their likes and dislikes are different. Therefore the Sages of the past favored not uniformity of skill or of occupation. Reputation was commensurate with reality; means were adapted to end. This was called a due relationship with others coupled with advantage to oneself."