There has always been a give and receive model of philanthropy. The ancient Romans even had a phrase for it: do ut des, which means "I give so that you may give." It started as the way people approached offerings to their gods, and it became a basic rule of how favors and gifts worked in Roman life. Today we might call it quid pro quo, or more simply, give to get. (Quid pro quo is also an IRS term for when a donor gets something back for a gift, like a gala dinner, and the ch