哈贝马斯认为道德规范有效性论证的话语证明,需要遵循话语原则和普遍规则。证明过程中需要遵循阿列克西关于实践话语原则的规则,这些参与者必须具有统一性,必须指向理解,必须是广泛、包容的。柯尔伯格的道德意识发展阶段理论则为主体何以具有道德论证能力提供了很好的说明。 Habermas believes that the demonstration of the validity of ethics demonstration of discourse, need to follow the principles of discourse and universal rules. The proof process needs to follow Alexei’s rules on the principle of discourse of practice, which must be uniform, must be understood, and must be broad and inclusive. Kohlberg’s theory of the stage of moral consciousness development provides a good explanation of why the subject has the ability of moral argumentation.