I really liked this quote by Rick Koerber about giving in a lecture he gave:
"The best way to help the poor and needy is to begin by giving of your substance which is not that which rusts and moth corrupts, it’s something you take with you when you leave this earth. It’s something you’ve experienced and learned, it’s something that’s much harder to give than a twenty dollar bill. It’s time and talent, it’s knowledge and training. You will feed more hungry and clothe more naked by imparting what you really have than by trying to feel good giving something that’s probably not yours to begin with."