Every place, and every scene that are worth observing, must have something of the sublime, the beautiful, or the picturesque; and every man will allow that he would wish to preserve and to heighten, certainly not to destroy, their prevailing character. The most obvious method of succeeding in the one, and of avoiding the other, is by studying their causes and effects … and sure I am, that he who studies the various effects and characters of form, colour, and light and shadow, and examines and compares those characters and effects, the manner in which they are combined and disposed, both in pictures and in nature,—will be better qualified to arrange, certainly to enjoy, his own and every scenery, than he who has only thought of the most fashionable arrangement of objects; or has looked at nature alone, without having acquired any just principles of selection.