FullReads

Psychologists, studying our perceptions of movement, have unearthed experiences in which movement is felt in general but not ascribed correctly to the body that really moves. Thus in optical vertigo, caused by unconscious movements of our eyes, both we and the external universe appear to be in a whirl. When clouds float by the moon, it is as if both clouds and moon and we ourselves shared in the motion. In the extraordinary case of amnesia of the Rev. Mr. Hanna, published by Sidis and Goodhart in their important work on Multiple Personality, we read that when the patient first recovered consciousness and “noticed an attendant walk across the room, he identified the movement with that of his own. He did not yet discriminate between his own movements and those outside himself.”[79] Such experiences point to a primitive stage of perception in which discriminations afterwards needful have not yet been made. A piece of experience of a determinate sort is there, but there at first as a ‘pure’ fact. Motion originally simply is; only later is it confined to this thing or to that. Something like this is true of every experience, however complex, at the moment of its actual presence. Let the reader arrest himself in the act of reading this article now. Now this is a pure experience, a phenomenon, or datum, a mere that or content of fact. ‘Reading’ simply is, is there; and whether there for some one’s consciousness, or there for physical nature, is a question not yet put. At the moment, it is there for neither; later we shall probably judge it to have been there for both.

With the affectional experiences which we are considering, the relatively ‘pure’ condition lasts. In practical life no urgent need has yet arisen for deciding whether to treat them as rigorously mental or as rigorously physical facts. So they remain equivocal; and, as the world goes, their equivocality is one of their great conveniences.

The shifting place of ‘secondary qualities’ in the history of philosophy[80] is another excellent proof of the fact that ‘inner’ and ‘outer’ are not coefficients with which experiences come to us aboriginally stamped, but are rather results of a later classification performed by us for particular needs. The common-sense stage of thought is a perfectly definite practical halting-place, the place where we ourselves can proceed to act unhesitatingly. On this stage of thought things act on each other as well as on us by means of their secondary qualities. Sound, as such, goes through the air and can be intercepted. The heat of the fire passes over, as such, into the water which it sets a-boiling. It is the very light of the arc-lamp which displaces the darkness of the midnight street, etc. By engendering and translocating just these qualities, actively efficacious as they seem to be, we ourselves succeed in altering nature so as to suit us; and until more purely intellectual, as distinguished from practical, needs had arisen, no one ever thought of calling these qualities subjective. When, however, Galileo, Descartes, and others found it best for philosophic purposes to class sound, heat, and light along with pain and pleasure as purely mental phenomena, they could do so with impunity.[81]

Even the primary qualities are undergoing the same fate. Hardness and softness are effects on us of atomic interactions, and the atoms themselves are neither hard nor soft, nor solid nor liquid. Size and shape are deemed subjective by Kantians; time itself is subjective according to many philosophers;[82] and even the activity and causal efficacy which lingered in physics long after secondary qualities were banished are now treated as illusory projections outwards of phenomena of our own consciousness. There are no activities or effects in nature, for the most intellectual contemporary school of physical speculation. Nature exhibits only changes, which habitually coincide with one another so that their habits are describable in simple ‘laws.'[83]