V

Of Reason and Science

When a man “reasoneth,” he does nothing else but conceive a sum total, from “addition” of parcels; or conceive a remainder, from “subtraction” of one sum from another; which, if it be done by words, is conceiving of the consequence of the names of all the parts, to the name of the whole; or from the names of the whole and one part, to the name of the other part. And though in some things, as in numbers, besides adding and subtracting, men name other operations, as “multiplying” and “dividing,” yet they are the same; for multiplication is but adding together of things equal; and division but subtracting of one thing, as often as we can. These operations are not incident to numbers only, but to all manner of things that can be added together, and taken one out of another.