John Ruskin,
Modern Painters, Volume 2 (of 5…
“ Thus, when we are told that the leaves of a plant are occupied in decomposing carbonic acid, and preparing oxygen for us, we begin to look upon it with some such indifference as upon a gasometer. It has become a machine; some of our sense of its happiness is gone; its emanation of inherent life is no longer pure. The bending trunk, waving to and fro in the wind above the waterfall, is beautiful because it is happy, though it is perfectly useless to us. The same trunk, hewn down and thrown across the stream, has lost its beauty. ”
