At length corruption, like a general flood (So long by watchful ministers withstood), Shall deluge all; and avarice, creeping on, Spread like a low-born mist, and blot the sun.
Omission to do what is necessary Seals a commission to a blank of danger; And danger, like an ague, subtly taints Even then when we sit idly in the sun.
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)