Pay it Forward
Definition: the act of voluntarily helping another without expectation of payback - from the book Pay it Forward by Catherine Ryan Hyde and the film starring Kevin Spacey, Helen Hunt, Jon Bon Jovi, Angie Dickenson.
Pay It Forward is about Trevor McKinney, a twelve-year-old boy in a small California town who accepts the challenge that his teacher gives his class, a chance to earn extra credit by coming up with a plan to change the world for the better -- and to put that plan into action.
What is his idea? Trevor chooses three people for whom he will do a favour, and then when those people thank him and ask how they might pay him back, he will tell them that instead of paying him back, they should each "pay it forward" by choosing three people for whom they can do favours, and in turn telling those people to pay it forward. It's nothing less than a human chain letter of kindness and good will.