“I was early taught to work as well as play,
My life has been one long, happy holiday;
Full of work and full of play
I dropped the worry on the way
And God was good to me every day. “
– John D. Rockefeller
I like this quote very much. There is more here http://en.wikiquote.org/wiki/John_D._Rockefeller. If you are interested in reading about John D. Rockefeller’s life, you should read the book Titan: The Life of John D. Rockefeller by John Chernow.