Be it deep or shallow, red or black, sand or clay, the soil is the link between the rock core of the earth and the living things on its surface. It is the foothold for the plants we grow. Therein lies the main reason for our interest in soils. – Roy Simonson, USDA Yearbook of Agriculture, 1957

History, like a vast river, propels logs, vegetation, rafts, and debris; it is full of live and dead things, some destined for resurrection; it mingles many waters and holds in solution invisible substances stolen from distant soils. – Jacques Barzun, Clio and the Doctors

Tomatoes and squash never fail to reach maturity. You can spray them with acid, beat them with sticks and burn them; they love it. – S.J. Perelman, Acres and Pains, 1951