People in cities may forget the soil for as long as a hundred years, but Mother Nature's memory is long and she will not let them forget indefinitely. Henry Cantwell Wallace More Quotes by Henry Cantwell Wallace More Quotes From Henry Cantwell Wallace To destroy a standing crop goes against the soundest instincts of human nature. Henry Cantwell Wallace crops instinct nature Nations endure only as long as their topsoil. Henry Cantwell Wallace topsoil endure long