Sidney Colvin,
Dictionary of National Biography…
(1889)
“ Sketching constantly, as was his habit, with pen and pencil the leading lines and masses of every scene and every action of daily humanity that caught his attention within doors or without, and at the same time studying ardently, since his arrival in Italy, the works of Greek design in ancient vases and bas-reliefs, he had greatly strengthened his natural gifts both for linear design and the expression of life and action. ”
