"I have been struck again and again by how important measurement is to improving the human condition."

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I got up early and bathed in the pond; that was a religious exercise, and one of the best things which I did. They say that characters were engraven on the bathing tub of King Tching-thang to this effect: "Renew thyself completely each day; do it again, and again, and forever again."

— Henry David Thoreau