Charles H. Caffin, A Child's Guide to Pictures
“ I need not tell you that an artist’s hands may be alive with feeling when he holds a brush, just as when he has a pencil in them. In fact, what we have said about feeling and expression in line may be applied to brushwork. In the case of a man who is not merely a filler in of spaces with paint, but is by instinct a painter, the brushwork grows into life beneath his hand. Sometimes he lays aside his brush and takes a palette-knife, with which to spread the paint on the surface or to scrape the part already painted. Sometimes he uses no tool at all, but kneads the paint with his thumb. ”
