Where does Aristotle suggest we should investigate to determine " the good and the chief good ? He says that we should try to find something that we desire for its own sake, and not for the sake of anything else, and he identifies this thing as "happiness. He says that there is, in fact, no single chief good. He says that we should read philosophers to determine the chief good He says that "the good and the chief good" exists within our hearts, and he writes that self- expression is the highest form of this good.