The question is, what is the difference between man and animal? Is it not in the form of the man? But if only the form is man, strictly speaking all natural forms in this world gradually change into the human form. The more we study the life of birds, insects, creatures, or even the vegetable kingdom, the more plainly we shall see how the face of man has emerged, step by step, from the primitive preparatory stages, through all the different manifestations, until it has appeared as man. Thus if it were only the form that makes man man, he would never have been called mind; so it is something beyond form that makes man.