道德是否有客观性是当代西方道德哲学最具争议性的论题之一,威廉斯从科学与伦理学的二元区分之中划开道德判定的分界线。在此基础之上,伦理概念可以区分为厚概念与薄概念,厚伦理概念具有世界导向性与行动指导性,而薄伦理概念由于普遍性和抽象性而缺乏世界指导性,但这类词语已经构成了至高无上的道德体系主要部分。道德客观性的失败会影响我们如何理解道德实践,因此威廉斯提出并论证了道德的“非客观主义”模式。 Whether morality is objective or not is one of the most controversial topics in contemporary Western moral philosophy. Williams demarcates the line of moral judgment from the dual distinction between science and ethics. On this basis, the concept of ethics can be divided into the concept of thick and thin, the concept of thick ethics of world orientation and the action of instruction, and the concept of thin ethics because of the universality and abstraction of the lack of world guidance, but such words have been Constitute the supreme moral system of the main part. The failure of moral objectivity affects how we understand moral practice, so Williams proposes and justifies the “non-objective” moral model.