The account which the author gives of a Predication, or Proposition, is, first, that it is a mode of so putting together the marks of sensations and ideas, as to mark the order of them. Secondly, that it consists in substituting one name for another, so as to signify that a certain name (called the predicate), is a mark of the same idea which another name (called the subject) is a mark of. It must be allowed that a predication, or proposition, is intended to mark some portion of the order either of our sensations or of our ideas, _i.e._, some part of the coexistences or sequences which take place either in our minds, or in what we term the external world. But what sort of order is it that a predication marks? An order supposed to be believed in. When _John_, or _man_, are said to be marks of an individual object, all there is in the matter is that these words, being associated with the idea of the object, are intended to raise that idea in the mind of the person who hears or reads them. But when we say, John is a man, or, John is an old man, we intend to do more than call up in the hearer's mind the images of John, of a man, and of an old man. We intend to do more than inform him that we have thought of, or even seen, John and a man, or John and an old man, together. We inform him of a fact respecting John, namely, that he _is_ an old man, or at all events, of our belief that this is a fact. The characteristic difference between a predication and any other form of speech, is, that it does not merely bring to mind a certain object (which is the only function of a mark, merely as such); it asserts something respecting it. Now it may be true, and I think it is true, that every assertion, every object of Belief,--everything that can be true or false--that can be an object of assent or dissent--is some order of sensations or of ideas: some coexistence or succession of sensations or ideas actually experienced, or supposed capable of being experienced. And thus it may appear in the end that in expressing a belief, we are after all only declaring the order of a group or series of sensations or ideas. But the order which we declare is not an imaginary order; it is an order believed to be real. Whatever view we adopt of the psychological nature of Belief, it is necessary to distinguish between the mere suggestion, to the mind of a certain order among sensations or ideas such as takes place when we think of the alphabet, or the numeration table and the indication that this order is an actual fact, which is occurring, or which has occurred once or oftener, or which, in certain definite circumstances, always occurs; which are the things indicated as true by an affirmative predication, and as false by a negative one.