On the lines of the mighty and simple strains dominating the movement, and felt intuitively and studied out by him, the master artist groups with full intention, his muscular forms. No detail contradicts. His men and animals live. Such is the work of three or four modern artists. Such was the work of many an old Greek sculptor.

"The Differential Action of Certain Muscles Passing More than One Joint," lecture, Academy of Natural Sciences, Philadelphia (1894-05-01).