The misery of human life is made up of large masses, each separated from the other by certain intervals. One year the death of a child; years after, a failure in trade; after another longer or shorter interval, a daughter may have married unhappily; in all but the singularly unfortunate, the integral parts that compose the sum-total of the unhappiness of a man's life are easily counted and distinctly remembered.
Now Art, used collectively for painting, sculpture, architecture and music, is the mediatress between, and reconciler of, nature and man. It is, therefore, the power of humanizing nature, of infusing the thoughts and passions of man into everything which is the object of his contemplation.
Imagination that compares and contrasts with what is around as well as what is better and worse is the living power and prime agent of all human perception judgement and emotional reaction.
Creation rather than painting, or if painting, yet such, and with such co-presence of the whole picture flash'd at once upon the eye, as the sun paints in a camera obscura. (Describing his poetic ideal, 1817)