At some point, one asks, "Toward what end is my life lived?" A great freedom comes from being able to answer that question. A sleeper can be decoyed out of bed by the sheer beauty of dawn on the open seas. Part of my job, as I see it, is to allow that to happen. Sleepers like me need at some point to rise and take their turn on morning watch for the sake of the planet, but also for their own sake, for the enrichment of their lives. From the deserts of Namibia to the razor-backed Himalayas, there are wonderful creatures that have roamed the Earth much longer than we, creatures that not only are worthy of our respect but could teach us about ourselves.
Diane Ackerman, The Rarest of the Rare: Vanishing Animals, Timeless Worlds