IT will now be instructive to retrace our steps, to look back upon the space we have passed, and contemplate the progress we have made toward our journey’s end.
We have become acquainted with the elementary feelings of our nature; first, those derived immediately from our bodies, whether by impressions made on the surface of them, or unseen causes operating on them within; secondly, the feelings which, after the above mentioned feelings have ceased, are capable of existing as copies or representatives of them.
We have also observed the manner in which those secondary Feelings, to which we have given the name of IDEAS, flow, either into groups, or into trains. And 224 we have explored the system of contrivances, to which mankind have had recourse, for MARKING those feelings, and the trains of them; so as either to fix the knowledge of them for one’s own use, or to make communication of them to others.
In what has been thus already presented, it will be seen that several expositions of considerable importance are included.
Sensations, and Ideas, are both feelings. When we have a sensation we feel, or have a feeling; when we have an idea we feel, or have a feeling.
Having a SENSATION, and having a feeling, are not two things. The thing is one, the names only are two. I am pricked by a pin. The sensation is one; but I may call it sensation, or a feeling, or a pain, as I please. Now, when, having the sensation, I say I feel the sensation, I only use a tautological expression: the sensation is not one thing, the feeling another; the sensation is the feeling. When, instead of the word feeling, I use the word conscious, I do exactly the same thing, I merely use a tautological expression. To say I feel a sensation, is merely to say I feel a feeling; which is an impropriety of speech. And to say I am conscious of a feeling, is merely to say that I feel it. To have a feeling is to be conscious; and to be conscious is to have a feeling. To be conscious of the prick of the pin, is merely to have the sensation. And though I have these various modes of naming my sensation, by saying, I feel the prick of a pin, I feel the pain of a prick, I have the sensation of a prick, I have the feeling of a prick, I am conscious of the feeling; the thing named in all these various ways is one and the same.
225 The same explanation will easily be seen to apply to IDEAS. Though, at present, I have not the sensation, called the prick of a pin, I have a distinct idea of it. The having an idea, and the not having it, are distinguished by the existence or non-existence of a certain feeling. To have an idea, and the feeling of that idea, are not two things; they are one and the same thing. To feel an idea, and to be conscious of that feeling, are not two things; the feeling and the consciousness are but two names for the same thing. In the very word feeling all that is implied in the word Consciousness is involved.
Those philosophers, therefore, who have spoken of Consciousness as a feeling, distinct from all other feelings, committed a mistake, and one, the evil consequences of which have been most important; for, by combining a chimerical ingredient with the elements of thought, they involved their inquiries in confusion and mystery, from the very commencement.
It is easy to see what is the nature of the terms CONSCIOUS, and CONSCIOUSNESS, and what is the marking function which they are destined to perform. It was of great importance, for the purpose of naming, that we should not only have names to distinguish the different classes of our feelings, but also a name applicable equally to all those classes. This purpose is answered by the concrete term Conscious; and the abstract of it, Consciousness. Thus, if we are in any way sentient; that is, have any of the feelings whatsoever of a living creature; the word Conscious is applicable to the feeler, and Consciousness to the feeling: that is to say, the words are GENERICAL marks, under which all the names of the subordinate classes 226 of the feelings of a sentient creature are included. When I smell a rose, I am conscious; when I have the idea of a fire, I am conscious; when I remember, I am conscious; when I reason, and when I believe, I am conscious; but believing, and being conscious of belief, are not two things, they are the same thing; though this same thing I can name, at one time without the aid of the generical mark, while at another time it suits me to employ the generical mark.[74] [75]
[74] The mistake of Reid in raising Consciousness to a separate faculty has been commented on by Brown, Hamilton, and others. It must be allowed that to feel and to be conscious are not two things but the same thing: that is to say, the use of the term consciousness, whether in common life or in philosophical discussion, does not point to knowing, and exclude feeling.