John Constable
Although Constable produced paintings throughout his life for the market of patrons and R.A. exhibitions, on-the-spot studies were essential. He never just followed a formula. "The world is wide", he wrote, "no two days are alike, nor even two hours; neither were there ever two leaves of a tree alike since the creation of all the world; and the genuine productions of art, like those of nature, are all distinct from each other".p64