The connection between matter and mind now is notorious. To say “it must be” is merely the irrationalism of saying that my present state is the necessary and universal form of being. You may, with Mr. Owen and Prof. Huxley, have examined every cerebrum and cerebellum from a Lemur to a Pithecus, and you have not touched the question; you have seen it on the side of matter, and of matter only; and you are incapable, in ideas or reasoning, of going farther, because that is the form of your existence now, and even so only one and tine lowest side of it.