Today, he has made at least $40 million - more money than most of his Harvard classmates.
Mr. Quinn first met one of his Harvard classmates last summer when he held the door for her as she left the building.
The two men, who met as Harvard classmates, have been in business together for 23 years.
The last time we saw each other," she said, "was at that dinner David gave for some of his former Harvard classmates.
It was in fact a phrase used by a Harvard classmate who also took Sarah out, but only twice, as I recall.
He led a busy life with the street boys, his Harvard classmates, and the social elite.
"College teaching is the least interesting," Leavitt wrote his Harvard classmates, "normal school the most interesting."
"While his Harvard classmates - black and white - get rich, he defends penniless murderers."
"I am beginning life anew," he jubilantly informed a Harvard classmate.
He kept in touch with his Harvard classmates, and for several in particular maintained boundless admiration.