"One of the troubles with humanity is that of changing a thought from the old to a new channel; to grasp at one effort an entirely new idea is an impossibility. Men follow men in trains of thought expression, as in bodily form generations of men follow generations. A child born with three legs is a freak of nature, a monstrosity, yet it sometimes appears. A man possessed of a new idea is an anomaly, a something that may not be impossible, but which has never appeared. It is almost as difficult to conceive of a new idea as it is to create out of nothing a new material or an element. Neither thoughts nor things can be invented, both must be evolved out of a preexisting something which it necessarily resembles. Every advanced idea that appears in the brain of man is the result of a suggestion from without. Men have gone on and on ceaselessly, with their minds bent in one direction, ever looking outwardly, never inwardly. It has not occurred to them to question at all in the direction of backward sight. Mind has been enabled to read the impressions that are made in and on the substance of brain convolutions, but at the same time has been and is insensible to the existence of the convolutions themselves. It is as though we could read the letters of the manuscript that bears them without having conceived of a necessity for the existence of a printed surface, such as paper or anything outside the letters. Had anatomists never dissected a brain, the human family would to-day live in absolute ignorance of the nature of the substance that lies within the skull. Did you ever stop to think that the mind can not now bring to the senses the configuration, or nature, of the substance in which mind exists? Its own house is unknown. This is in consequence of the fact that physical existence has always depended upon the study of external surroundings, and consequently the power of internal sight lies undeveloped. It has never been deemed necessary for man to attempt to view the internal construction of his body, and hence the sense of feeling only advises him of that which lies within his own self. This sense is abstract, not descriptive. Normal organs have no sensible existence. Thus an abnormal condition of an organ creates the sensation of pain or pleasure, but discloses nothing concerning the appearance or construction of the organ affected. The perfect liver is as vacancy. The normal brain never throbs and aches. The quiescent arm presents no evidence to the mind concerning its shape, size, or color. Man can not count his fingers unless some outside object touches them, or they press successively against each other, or he perceives them by sight. The brain of man, the seat of knowledge, in which mind centers, is not perceptible through the senses. Does it not seem irrational, however, to believe that mind itself is not aware, or could not be made cognizant, of the nature of its material surroundings?"