2 Answers

NO, I don't have an essay you can stick your name on, but I can give you a definition of "generosity":  It is the act of being generous.  Generous mean selfless giving of one's time, talent, resources, and so on. 
The generosity of the teacher was evident when she tutored the student for no cost. (talent)
Giving that million dollars for the new stadium, knowing it won't be named after him or anyone in is family is just one example of Fred's generosity of resources.
The way Colleen, pythonlover, and Ducky serve as moderators here for hours at a time with no compensation is a good example of generosity of time.  
After the accident, while his dad was in surgery, Margaret stayed at the hospital after her shift was over, just to keep his young son company. Generosity of heart. 

Giving from the HEART without expecting anything in return.