From the book,
 If Life is a Game, Here are the Rules.  I picked up this book recently and find the Rules to be intriguing and simple. Here is a summary:
1. You will receive a body.
You may like it or hate it, but it's yours to keep for the entire period.
2. You will learn lessons.
You are enrolled in a full-time informal school called, "life."
3. There are no mistakes, only lessons.
Growth is a process of trial, error, and experimentation. The "failed"  experiments are as much a part of the process as the experiments that  ultimately "work."
4. Lessons are repeated until they are learned.
A lesson will be presented to you in various forms until you have  learned it. When you have learned it, you can go on to the next lesson.
5. Learning lessons does not end.