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

By the time one is eighty, it is said, there is no longer a tug of war in the garden with the May flowers hauling like mad against the claims of the other months. All is at last in balance and all is serene. The gardener is usually dead, of course. – Henry Mitchell, The Essential Earthman, 1981