This chapter begins with a discussion of Descartes' proposition, Cogito or in English, I think, and his “thinking-man paradox”. It explains the focus of the book, which is the predicate (verb) of the proposition I think. The book seeks to determine what thinking is and what it is for a human being to be thinking. This chapter also describes the instruction of students about Descartes' thinking-man project.
Keywords: Descartes, Cogito, I, Meditations, thinking, thinking-man project