If, then, I MINUS the will be the THESIS, Thou, PLUS will, must be the ANTITHESIS, but the equation of Thou with I, by means of a free act, negativing the sameness in order to establish the equality, is the true definition of conscience. But as without a Thou there can be no You, so without a You no They, These, or Those; and as all these conjointly form the materials and subjects of consciousness and the conditions of experience, it is evident that conscience is the root of all consciousness--a fortiori, the precondition of all experience--and that the conscience cannot have been in its first revelation deduced from experience.
Soon, however, experience comes into play. We learn that there are other impulses beside the dictates of conscience, that there are powers within us and without us ready to usurp the throne of conscience, and busy in tempting us to transfer our allegiance. We learn that there are many things contrary to conscience, and therefore to be rejected and utterly excluded, and many that can coexist with its supremacy only by being subjugated as beasts of burthen; and others again, as for instance the social tendernesses and affections, and the faculties and excitations of the intellect, which must be at least subordinated. The preservation of our loyalty and fealty under these trials, and against these rivals, constitutes the second sense of faith; and we shall need but one more point of view to complete its full import. This is the consideration of what is presupposed in the human conscience. The answer is ready. As in the equation of the correlative I and Thou, one of the twin constituents is to be taken as PLUS will, the other as MINUS will, so is it here; and it is obvious that the reason or SUPER-individual of each man, whereby he is a man, is the factor we are to take as MINUS will, and that the individual will or personalising principle of free agency ("arbitrement" is Milton's word) is the factor marked PLUS will; and again, that as the identity or co-inherence of the absolute will and the reason, is the peculiar character of God, so is the SYNTHESIS of the individual will and the common reason, by the subordination of the former to the latter, the only possible likeness or image of the PROTHESIS or identity, and therefore the required proper character of man. Conscience, then, is a witness respecting the identity of the will and the reason, effected by the self-subordination of the will or self to the reason, as equal to or representing the will of God. But the personal will is a factor in other moral SYNTHESIS, for example, appetite PLUS personal will = sensuality; lust of power, PLUS personal will = ambition, and so on, equally as in the SYNTHESIS on which the conscience is grounded. Not this, therefore, but the other SYNTHESIS, must supply the specific character of the conscience, and we must enter into an analysis of reason. Such as the nature and objects of the reason are, such must be the functions and objects of the conscience. And the former we shall best learn by recapitulating those constituents of the total man which are either contrary to or disparate from the reason.
I. Reason, and the proper objects of reason, are wholly alien from sensation. Reason is supersensual, and its antagonist is appetite, and the objects of appetite the lust of the flesh.
II. Reason and its objects do not appertain to the world of the senses, inward or outward; that is, they partake not of sense or fancy. Reason is supersensuous, and here its antagonist is the lust of the eye.
III. Reason and its objects are not things of reflection, association, discursion, discourse in the old sense of the word as opposed to intuition; "discursive or intuitive," as Milton has it.
Reason does not indeed necessarily exclude the finite, either in time or in space, but it includes them eminenter. Thus the prime mover of the material universe is affirmed to contain all motion as its cause, but not to be, or to suffer, motion in itself.
Reason is not the faculty of the finite. But here I must premise the following. The faculty of the finite is that which reduces the confused impressions of sense to their essential forms--quantity, quality, relation, and in these action and reaction, cause and effect, and the like; thus raises the materials furnished by the senses and sensations into objects of reflection, and so makes experience possible. Without it, man's representative powers would be a delirium, a chaos, a scudding cloudage of shapes; and it is therefore most appropriately called the understanding, or substantiative faculty. Our elder metaphysicians, down to Hobbes inclusively, called this likewise discourse, discuvsus discursio, from its mode of action as not staying at any one object, but running, as it were, to and fro to abstract, generalise, and classify. Now when this faculty is employed in the service of the pure reason, it brings out the necessary and universal truths contained in the infinite into distinct contemplation by the pure act of the sensuous imagination--that is, in the production of the forms of space and time abstracted from all corporeity, and likewise of the inherent forms of the understanding itself abstractedly from the consideration of particulars, as in the case of geometry, numeral mathematics, universal logic, and pure metaphysics. The discursive faculty then becomes what our Shakespeare, with happy precision, calls "discourse of reason."
We will now take up our reasoning again from the words "motion in itself."
It is evident, then, that the reason as the irradiative power, and the representative of the infinite, judges the understanding as the faculty of the finite, and cannot without error be judged by it.