“A painter told me that nobody could draw a tree without in some sort becoming a tree; or draw a child by studying the outlines of its form merely, —but, by watching for a time his motions and plays, the painter enters into his nature, and can then draw him at will in every attitude. So Roos “entered into the inmost nature of a sheep.” I knew a draughtsman employed in a public survey, who found that he could not sketch the rocks until their geological structure was first explained to him. In a certain state of thought is the common origin of very diverse works. It is the spirit and not the fact that is identical. By a deeper apprehension, and not primarily by a painful acquisition of many manual skills, the artist attains the power of awakening other souls to a given activity.”
—Ralph Waldo Emerson, from his History essay.