Everything is flowing -- going somewhere, animals and so- called lifeless
rocks as well as water. Thus the snow flows fast or slow in grand
beauty-making glaciers and avalanches; the air in majestic floods carrying
minerals, plant leaves, seeds, spores, with streams of music and fragrance;
water streams carrying rocks... While the stars go streaming through space
pulsed on and on forever like blood...in Nature's warm heart.
-- John Muir, American Naturalist (1838-1914)