• The earth is a machine which yields almost gratuitous service to every application of intellect. Every plant is a manufacturer of soil. In the stomach of the plant development begins. The tree can draw on the whole air, the whole earth, on all the rolling main. The plant is all suction-pipe,--imbibing from the ground by its root, from the air by its leaves, with all its might.

    Ralph Waldo Emerson (1911). “The Complete Works of Ralph Waldo Emerson”, p.144, Рипол Классик