The discussion notes for this week can be found on page 436 of your book.
One additional issue we did not cover in class, but is important for you to know as you read The Republic:
Intrinsic Good and Non-Intrinsic Good
It might be better if we talk about non-intrinsic good first. In the lecture, Professor Fumerton talked about the example of going to the dentist. Going to the dentist is not something we do because we particularly like going to the dentist. We don't sit on the chair at the dental clinic while we get our teeth probed and feel pain because we think that is good. Rather, we go to the dentist because we want something else: a good smile or healthy teeth. Going to the dentist then is not intrinsically good; it is a non-intrinsic good; it is not good in and of itself; in other words, going to the dentist is good because it gives us some other good (good teeth, a good smile, etc.).
On the other hand, an intrinsic good is something we do because it is good in and of itself; or simply because it is good and no other reason. Hedonists are people who believe pleasure is an intrinsic good (or maybe even the only intrinsic good). This doesn't simply mean intense physical pleasure, but many other subtler kinds of pleasures, as well, such as the pleasure we get from laughing with friends, or from enjoying a beautiful sunrise.
