"If you have a napkin, you need another napkin to receive back all the blessings you'll get. And you keep giving. Then you need a towel to receive all the gifts. And you continue giving. Finally, you need a tablecloth. And you continue giving - not stupidly, but you give. And when you give, you finally have to move out and get a second house, and a third house and a fourth.It is a no - fail, incontrovertible reality: If you get, give. If you learn, teach. You can't do anything with that except do it."