And if we must be persuaded to suspend our judgment in regard to everything, we shall first suspend our judgment in regard to our suspense of judgment itself, whether we are to credit it or not.
And if this position is true, that we do not know what is true, then absolutely nothing is allowed to be true by it. But if he will say that even this is questionable, whether we know what is true; by this very statement he grants that truth is knowable, in the very act of appearing to establish the doubt respecting it.
But if a philosophical sect is a leaning toward dogmas, or, according to some, a leaning to a number of dogmas which have consistency with one another and with phenomena, tending to a right life; and dogma is a logical conception; and conception is a state and assent of the mind: not merely sceptics, but every one who dogmatizes is accustomed in certain things to suspend his judgment, either through want of strength of mind, or want of clearness in the things, or equal force in the reasons.
CHAPTER VI.
DEFINITIONS, GENERA, AND SPECIES.
The introductions and sources of questions are about these points and in them.
But before definitions, and demonstrations, and divisions, it must be propounded in what ways the question is stated; and equivocal terms are to be treated; and synonyms stated accurately according to their significations.
Then it is to be inquired whether the proposition belongs to those points, which are considered in relation to others, or is taken by itself. Further, If it is, what it is, what happens to it; or thus, also, if it is, what it is, why it is. And to the consideration of these points, the knowledge of Particulars and Universals, and the Antecedents and the Differences, and their divisions, contribute.
Now, Induction aims at generalization and definition; and the divisions are the species, and what a thing is, and the individual. The contemplation of the How adduces the assumption of what is peculiar; and doubts bring the particular differences and the demonstrations, and otherwise augment the speculation and its consequences; and the result of the whole is scientific knowledge and truth.
Again, the summation resulting from Division becomes Definition. For Definition is adopted before division and after: before, when it is admitted or stated; after, when it is demonstrated. And by Sensation the Universal is summed up from the Particular. For the starting point of Induction is Sensation; and the end is the Universal.
Induction, accordingly, shows not what a thing is, but that it is, or is not. Division shows what it is; and Definition similarly with Division teaches the essence and what a thing is, but not if it is; while Demonstration explains the three points, if it is, what it is, and why it is.