This paper argues that the Theory of the Moral Sentiments (TMS) of Adam Smith, which has traditionally been interpreted as sentimentalist ethics, may be also reasonably interpreted as an ethic founded on practical reason. In fact, Alejandra Carrasco says in this article that Smith takes some fundamental concepts from the Aristotelian moral tradition and integrates them quite coherently to the notions of universality and impartiality inherent to the Enlightenment. According to Carrasco, this global vision of ethics, which establishes a minimum and maximum morality, transforms TMS into one of the most complete and interesting modern theories on ethics.