“If a man is called to be a streetsweeper, he should sweep streets even as Michelangelo painted, or Beethoven composed music, or Shakespeare wrote poetry. He should sweep streets so well that all the hosts of heaven and earth will pause to say, here lived a great streetsweeper who did his job well.”

Martin Luther King, Jr. made that statement and it is perhaps one of the most profound things I have ever read, outside of the Bible. It speaks to happiness. It speaks to all of us in trying to co...