Abstract

In the tradition of practical philosophy is usually retrospective, he will find a ancient Greece, Aristotle on philosophy, and philosophy will be directly across the Middle Ages to the tradition of modern philosophy, medieval philosophy, which is often overlooked impact of the traditional philosophy of practice. However, it is not. The paper selected by the impact of Aristotle's philosophy of the famous medieval philosopher Thomas Aquinas for the analysis of objects • to "Summa Theologica" in the discussion part of the human-based, focusing explain his point of view of practice from the practice of ethics an act of the triple distinction. Meanwhile, the article also pointed out that Thomas • Aquinas's thought, practice and can not produce the same, that is, as a practical and ethical behavior as a mechanical process of making the principles are different. When we usually trace back to the philosophical tradition of praxis, we would go directly to the Aristotle's philosophy, then to the modern philosophy, frequently overlooking the medieval philosophy. However, it is not the case. This article chooses the famous philosopher-Thomas Aquinas to analyze the triple distinction between acts on the basis of Summa Theologica. At the same time, this article also points out that in the thought of Thomas Aquinas, it is different between praxis and production, because of the difference of the followed principle