Who dares to teach must never cease to learn (John Cotton Dana). I love it because I'm a teacher :)

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. Albert Einstein

Every strike brings me closer to the next home run. –Babe Ruth

I have many. One is: "All animals, except man, know that the principal business of life is to enjoy it- and they do enjoy it as much as man and other circumstances will allow. He has spent his life best who has enjoyed it most; God will take care that we do not enjoy it any more than is good for us."--Samuel Butler