Including the values and beliefs, ethics, cultural traditions, customs, ideologies, such as the informal system of social constraints of the system constitutes an important but easily neglected.

• 包括价值信念、伦理道德、文化传统、风俗习惯、意识形态等在内的非正式制度是社会约束体系的重要构成，却又容易被忽视。