Abstract
It is important to re-investigate Aristotle’s concept of nous. This concept basically denotes some telos-related thinking/reasoning activity of the human intellect, which proceeds both upward and downward: upward to grasp a comprehension of the telos one has acquired, and downward to reach some ultimate end. It differs from the theoretical thinking/reasoning of science in its upward-proceeding inquiries in that it constitutes a comprehension of the very first principles; it differs from technique in its downward-proceeding reasoning in that it always proceeds with a certain comprehension of or insight into the telos of human beings. As it aims to attain some ultimate end, in practical affairs it is construed to proceed with downward reasoning. This downward reasoning zigzags around the issues being faced, until reaching some ultimate point, at which we need no more thinking and simply act. To see how this helps us in finding a way to the good life, we must adopt a special perspective on living, i.e., that of the good man, because it contains and is addressed to greater truth.