本文从杨国枢教授“双Y理论”对马斯洛“需要层次理论”的丰富和完善中，感到应有一种更合理的解释，来说明人在追求需要满足这个永无休止的过程或状态，通过再对各价值观理论进行分析后，得到人在追求不断满足需要的这个过程中，受“类本能”的驱动这一结论，并认为：“类本能”是人追求需要满足这一永恒状态的内部心理机制。 This article from Professor Yang Guoshu’s “Double Y Theory” on Maslow’s “Hierarchy of Needs Theory” enrichment and improvement, feel there should be a more reasonable explanation to illustrate the pursuit of human need to meet this never-ending process or state, through After analyzing each theory of values, we get the conclusion that people are driven by “class instinct” in the process of pursuing continuous satisfaction of needs and think that “class instinct” is the internal pursuit of people who need to meet this eternal state Mental mechanism.