Why is Dickie so angry at Richard at the beginning of the book, and what makes him decide to let go of his anger?

What makes Richard want to reach out and get to know Dickie?

After Dickie and Richard start to get along, why does Richard try to block Dickie out?

How does Richard help Dickie with his knowledge?

How does Dickie help Richard?

What makes Dickie make the choice he does at the end of the book?

How does Richard react to Dickie's choice and why?

How will Richard be different in the future as a result of his time with Dickie?