Abstract

• Thomas Aquinas to explore "how to understand their reason," the process involves not only the "how to become a thinking my thoughts," the problem, and on the "rational ability to understand nature through their own" and "how rational its activities to understand their own "issues such valuable ideas. Although these ideas have not yet fully developed, but they are in many ways contributed to the modern Western philosophy of "self" concept and "self-knowledge" studies of the formation. In discussing "how intellect knows itself", Thomas Aquinas not only touches upon the problem of "how does a thought become my own thought", but also offers many valuable insights on a series of problems such as "can intellect know itself through its essence "and" how does intellect know itself through its activity ". Although these ideas have not really been elaborated on, there is no doubt that they have helped foster the formation of the concepts of" self "and" self-knowledge "in modem Western philosophy