I have likewise made many 'skies' and effects — for I wish it could be said of me as Fuselli says of Rembrandt, 'he followed nature in her calmest abodes and could pluck a flower on every hedge — yet he was born to cast a steadfast eye on the bolder phenomena of nature'... We have had noble clouds & effects of light & dark & color.

Quote from a letter to Rev. John Fisher in 1821 on his oil-sketches of stormy weather, as quoted in Leslie Parris and Ian Fleming-Williams, Constable (Tate Gallery Publications, London 1993), p. 222