“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.”
“The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy.”
Source: Strength to Love, a collection of sermons and essays published in 1963.