Inference is the conditional acceptance of a proposition, Assent is the unconditional; the object of Assent is a truth, the object of Inference is the truth-like or a verisimilitude. The problem which I have undertaken is that of ascertaining how it comes to pass that a conditional act leads to an unconditional; and, having now shown that assent really is unconditional, I proceed to show how inferential exercises, as such, always must be conditional. We reason, when we hold this by virtue of that; whether we hold it as evident or as approximating or tending to be evident, in either case we so hold it because of holding something else to be evident or tending to be evident. In the next place, our reasoning ordinarily presents itself to our mind as a simple act, not a process or series of acts. We apprehend the antecedent and then apprehend the consequent, without explicit recognition of the medium connecting the two, as if by a sort of direct association of the first thought with the second. We proceed by a sort of instinctive perception, from premiss to conclusion. I call it instinctive, not as if the faculty were one and the same to all men in strength and quality (as we generally conceive of instinct), but because ordinarily, or at least often, it acts by a spontaneous impulse, as prompt and inevitable as the exercise of sense and memory. We perceive external objects, and we remember past events, without knowing how we do so; and in like manner we reason without effort and intention, or any necessary consciousness of the path which the mind takes in passing from antecedent to conclusion.