"He made money. It was rather amazing. After college he went to the city from which Black Bear Lake draws its wealthy patrons. When he was only twenty-three and had been there not quite two years, there were already people who liked to say: "Now there's a boy--" All about him rich men's sons were peddling bonds precariously, or investing patrimonies precariously, or plodding through the two dozen volumes of the "George Washington Commercial Course," but Dexter borrowed a thousand dollars on his college degree and his confident mouth, and bought a partnership in a laundry."

This quote tells you about Dexter, and how after college, he made successful investments in many different things, including a laundry, where he made a lot of money.