Sublime

receive anything in return for what you are willing to give.

Boosters in a game, where a player obtains something to help them achieve the win-state effectively.

Generosity wins favour for every one, especially when it is accompanied by modesty.

Free Lunch (Game Technique #24) Along the lines of the “Calling” theme, giving freebies (that are normally not free) to selected people in such a way that it binds them to a larger theme can make customers feel special and encourage them to take further action.

None of us are saints, but we can all try to be better. Each time you do something generous, you're shaping yourself into someone who's more likely to be generous next time, and that matters.

The greatest reward for our hard work is not what we get, but what we will become.