“A man who dares to waste one hour of time has not discovered the value of life.”
Charles Darwin (1809–1882) British naturalist, author of "On the origin of species, by means of natural selection"
volume I, chapter VI: "The Voyage", page 266 http://darwin-online.org.uk/content/frameset?pageseq=284&itemID=F1452.1&viewtype=image; letter to sister Susan Elizabeth Darwin (4 August 1836) <br class="br">The Life and Letters of Charles Darwin (1887) <br class="br">Source: The Life & Letters of Charles Darwin