If one advances confidently in the direction of his dreams, and endeavors to live a life which he has imagined, he will meet with a success unexpected in common hours.
- Henry David Thoreau

The world is moved not only by the mighty shoves of the heroes, but also by the aggregate of the tiny pushes of each honest worker.
- Helen Keller

If a man is called to be a street sweeper, 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 street sweeper who did his job well.
- Martin Luther King, Jr.