George Sheringham, Drawings in pen & pencil from Dürer's day to ours…
“ For the materials of his craft are for the artist what he chooses to make them: a piece of red chalk in one man’s hand is a lump of hardened mud, conveniently sharpened to a point for making marks on paper, while, to another, it is a precious substance mined from the earth in some distant country and prepared with infinite care, and he knows that one touch of it on a paper—most carefully chosen—can be the basis of a delicious colour-harmony; that ink can flow from a reed pen in a line straight and true or run its course with subtle modulations—as a little stream flows from the hills. ”
