DAVID OCTAVIUS HILL
Scottish painter and arts activist

 
The rough surface, and unequal texture throughout of the paper is the main cause of the Calotype failing in details, before the process of Daguerreotypy – and this is the very life of it. They look like the imperfect work of a man – and not the much diminished perfect work of God. - David Octavius Hill
[1848] Cited in "The History of Photography" by Beaumont Newhall, The Museum of Modern Art, New York 1964, p. 37.