Probably my favorite quote from this chapter is "There are nowadays professors of philosophy, but not philosophers. Yet it is admirable to profess because it was once admirable to live." What I think Thearou is saying is that their is people who are supposed to be professors of philosophy but, they do not do what a philosopher used to do, which was try to answer questions. He is saying that philosophers are not like what they used to be, and are not as good as the previous philosophers. The second half of the quotes confuses me. I don't now the message Thearou is trying to send, and this is what makes Thearou's writing interesting since you have to find out what he is trying to say and once you figure it out, it makes perfect sense.
At the end of this chunk of the introduction, Thearou talks about how Walden Pond is a good place for business because of the railroad and the ice, but also since it's in a safe location. He says that Walden Pond will never become like the Neva river and flood severely and destroy everything, but that Walden Pond is a safe place because it is stable and it will never flood dangerously high and destroy everything around it.
This chapter was easier to read than the last, yet it was shorter and not as enjoyable as the last part because it was not as long and did not have as much content than the previous chunk.