QUALITY, which answers the same purpose with regard to both classes, as action does to one of them. That is to say; it is a very general non-connotative term, including under it the non-connotatives or abstracts of hot, cold, hard, soft, long, short; and not only of all other words of that description, but of acting, and its subordinates also. _Quantus_, is another concrete which has a double connotation like _qualis_. It connotes not only the substantive with which it agrees, but also, being a relative, the term _tantus_, which is its correlate. By dropping both connotations, the abstract QUANTITY is made; a general term, including under it the abstracts of all the names by which the modifications of greater and less are denominated; as large, small, a mile long, an inch thick, a handful, a ton, and so on. Much remains, beside what is here stated, of the full explanation of the mode in which _talis qualis_, {314} _tantus quantus_, are made conducive to the great purposes of marking. But this must be reserved till we come to treat of RELATIVE TERMS, in general. We have previously observed, that one of the purposes for which we abstract, or sunder the parts of a complex idea, marked by a general name, is, to form those adjectives, or connotative terms, which, denoting differences, enable us to form, and to name, subordinate classes. We now come to the next of the great purposes to which abstraction is subservient, and it is one to which the whole of our attention is due. Of all the things in which we are interested, that is, on which our happiness and misery depend, meaning here by things, both objects and events, the most important by far are the successions of objects; in other words, the effects which they produce. In reality, objects are interesting to us, solely on account of the effects which they produce, either on ourselves, or on other objects.