At the utmost, the active-minded young man should ask of his teacher only mastery of his tools. The young man himself, the subject of education, is a certain form of energy; the object to be gained is economy of his force; the training is partly the clearing away of obstacles, partly the direct application of effort. Once acquired, the tools and models may be thrown away.The manikin, therefore, has the same value as any other geometrical figure of three or more dimensions, which is used for the study of relation. For that purpose it cannot be spared; it is the only measure of motion, of proportion, of human condition; it must have the air of reality; must be taken for real; must be treated as though it had life. Who knows? Possibly it had!