"This idea fails to satisfy the majority of thinkers and most of them — belonging to other schools than the purely materialistic — posit something more than matter, and regard the mind as distinct from the brain; they hold the hypothesis that it is a subjective substantial reality, which can use the brain as its terminal of expression and which it can impress in order to express those concepts and intuitions which a man can consciously utilize. What we are considering is in no wise a supernormal faculty, or the possession of a specialized instrument by a gifted few; the mind should be used by all educated people, and at the close of the educational process (carried on in the formative years) a man should be in possession of a faculty that he understands and uses at will."