For as arithmeticians teach to add and subtract in “numbers,” so the geometricians teach the same in “lines,” “figures,” solid and superficial, “angles,” “proportions,” “times,” degrees of “swiftness,” “force,” “power,” and the like; the logicians teach the same in “consequences of words,” adding together two “names” to make an “affirmation,” and two “affirmations” to make a “syllogism”; and “many syllogisms” to make a “demonstration”; and from the “sum,” or “conclusion” of a “syllogism,” they subtract one “proposition” to find the other. Writers of politics add together “pactions” to find men’s “duties”; and lawyers “laws” and “facts,” to find what is “right” and “wrong” in the actions of private men. In sum, in what matter soever there is place for “addition” and “subtraction,” there also is place for “reason”; and where these have no place, there “reason” has nothing at all to do.