Of things stated, some are stated without connection; as, for example, “man” and “runs,” and whatever does not complete a sentence, which is either true or false. And of things stated in connection, some point out “essence,” some “quality,” some “quantity,” some “relation,” some “where,” some “when,” some “position,” some “possession,” some “action,” some “suffering,” which we call the elements of material things after the first principles. For these are capable of being contemplated by reason.