I'll let you tactfully be the judge of who offered this piece of wisdom originally - Howard Newton, an American advertising executive or Isaac Newton, mathematician extraordinaire. Either way, it's a good one!
"Give, and you will receive. Your gift will return to you in full - pressed down, shaken together to make room for more, running over, and poured into your lap. The amount you give will determine the amount you get back." Luke 6:38