[3] Cf. Book III. chap. vi. sec. 4: ‘Take but away the abstract ideas by which we sort individuals and rank them under common names, and then the thought of anything essential to any of them instantly vanishes,’ &c. How Locke avoids this question. 98. We have previously noticed [1] Locke’s pregnant remark, that ‘things whose existence is in succession’ do not admit of identity. (Book II. chap, xxvii. sec. 2.) So far, then, as the ‘real,’ in distinction from the ‘abstract,’ is constituted by particularity in time, or has its existence in succession, it excludes the relation of identity. ‘It perishes in every moment that it begins.’ Had Locke been master of this notion, instead of being irregularly mastered by it, he might have anticipated all that Hume had to say. As it is, even in passages such as those to which reference has just been made, where he follows its lead the farthest, he is still pulled up by inconsistent conceptions with which common sense, acting through common language, restrains the most adventurous philosophy. Thus, even from his illustration of the liability of all existence to change--‘that which was grass to-day is to-morrow the flesh of a sheep, and within a few days after will become part of a man’ [2]--we find that, just as he does not pursue the individualization of the real in space so far but that it still remains ‘a constitution of parts,’ so he does not pursue it in time so far but that a coexistence of real elements over a certain duration is possible. To a more thorough analysis, indeed, there is no alternative between finding reality in relations of thought, which, because relations of thought, are not in time and therefore are immutable, and submitting it to such subdivision of time as excludes all real coexistence because what is real, as present, at one moment is unreal, as past, at the next. This alternative could not present itself in its clearness to Locke, because, according to his method of interrogating consciousness, he inevitably found in its supposed beginning, which he identified with the real, those products of thought which he opposed to the real, and thus read into the simple feeling of the moment that which, if it were the simple feeling of the moment, it could not contain. Thus throughout the Second Book of the Essay the simple idea is supposed to represent either as copy or as effect a permanent reality, whether body or mind: and in the later books, even where the _representation_ of such reality in knowledge comes in question, its existence as constituted by ‘primary qualities of body’ is throughout assumed, though general propositions with regard to it are declared impossible. It is a feeling referred to body, or, in the language of subsequent psychology, a feeling of the _outward_ sense, [3] that Locke means by an ‘actual present sensation,’ and it is properly in virtue of this reference that such sensation is supposed to be, or to report, the real. [1] See above, paragraph 75.