According to metaphysic, the perception of matter is not the whole given fact with which we have to deal in working out this problem--(it is not the whole given fact; for, as we have said, our apprehension of, or participation in, the perception of matter--this is the whole given fact);--but the perception of matter is the _whole objective_ part of the given fact. But it will, perhaps, be asked--Are there not here two given facts? Does not the perception of matter imply two _data_? Is not the perception one given fact, and is not the matter itself another given fact--and are not these two facts perfectly distinct from one another? No: it is the false analysis of psychologists which we have already exposed that deceives us. But there is another circumstance which, perhaps, contributes more than any thing else to assist and perpetuate our delusion. This is the construction of language. We shall take this opportunity to put the student of philosophy upon his guard against its misleading tendency. People imagine that because two (or rather three) words are employed to denote the fact, (the perception of matter,) that therefore there are two separate facts and thoughts corresponding to these separate words. But it is a great mistake to suppose that the analysis of facts and thoughts necessarily runs parallel with the analysis of sounds. Man, as Homer says, is [Greek: merops], or a word-divider; and he often carries this propensity so far as to divide words where there is no corresponding division of thoughts or of things. This is a very convenient practice, in so far as the ordinary business of life is concerned: for it saves much circumlocution, much expenditure of sound. But it runs the risk of making great havoc with scientific thinking; and there cannot be a doubt that it has helped to confirm psychology in its worst errors, by leading the unwary thinker to suppose that he has got before him a complete fact or thought, when he has merely got before him a complete word. There are whole words which, taken by themselves, have no thoughts or things corresponding to them, any more than there are thoughts and things corresponding to each of the separate syllables of which these words are composed. The words "perception" and "matter" are cases in point. These words have no meaning,--they have neither facts nor thoughts corresponding to them, when taken out of correlation to each other. The word "perception" must be supplemented (mentally at least) by the words "of matter," before it has any kind of sense--before it denotes any thing that exists; and in like manner the word "matter" must be mentally supplemented by the words "perception of," before it has any kind of sense, or denotes any real existence. The psychologist would think it absurd if any one were to maintain that there is one separate existence in nature corresponding to the syllable _mat-_, and another separate existence corresponding to the syllable _ter_--the