"...I am anxious that the world should be inclined to look to painters for information on painting. I hope to show that ours is a regularly taught profession; that it is scientific as well as poetic; that imagination alone never did, and never can, produce works that are to stand by a comparison with realities; and to show, by tracing the connecting links in the history of landscape painting, that no great painter was ever self-taught." - From his Lecture 3, 9 June 1836
