Dare to do things worthy of imprisonment if you mean to be of consequence. – Juvenal

If a man is called 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.

There may have been a time when war served as a negative good by preventing the spread and growth of an evil force, but the destructive power of modern weapons eliminates even the possibility that war may serve as a negative good. – Martin Luther King,Jr., Strength to Love, 1963