"The student of landscape ... who tries to look at everything may wind up seeing nothing at all. We must be selective. At any given time we must concentrate on a few carefully chosen features, or types of feature, but we must never allow ourselves to forget that the features on which we concentrate are related in various ways, some close and some not so close, to all the other features of the landscape." . (John Fraser Hart, 1998 The Rural Landscape Baltimore: The John Hopkins University Press p.1-2)