This is the philosophy of Locke, in which there is no trace of speculation. The great end of Philosophy, which is to know the truth, is in it sought to be attained in an empiric way; it thus indeed serves to draw attention to general determinations. But such a philosophy not only represents the standpoint of ordinary consciousness, to which all the determinations of its thought appear as if given, humble as it is in the oblivion of its activity, but in this method of derivation and psychological origination that which alone concerns Philosophy, the question of whether those thoughts and relationships have truth in and for themselves, is not present at all, inasmuch as the only object aimed at is to describe the manner in which thought accepts what is given to it. It may be held with Wolff that it is arbitrary to begin with concrete conceptions, as when our conception of identity is made to take its origin from such things as blue flowers and the blue heavens. One can better begin directly from universal conceptions and say that we find in our consciousness the conceptions of time, cause and effect these are the later facts of consciousness. This method forms the basis of the Wolffian system of reasoning, only here we must still distinguish amongst the different conceptions those that are to be regarded as most essential; in Locke's philosophy, this distinction cannot really be said to come under consideration. From this time, according to Locke, or in this particular aspect of Philosophy, there is a complete and entire change in the point of view adopted; the whole interest is limited to the form in which the objective, or individual sensations, pass into the form of conceptions. In the case of Spinoza and Malebranche, we undoubtedly likewise saw that it was made a matter of importance to recognize this relation of thought to what is sensuously perceived, and thus to know it as falling into relation, as passing into the relative; the main question hence was: How are the two related? But the question was answered to the effect that it is only this relation for itself that constitutes the point of interest, and this relation itself as absolute substance is thus identity, the true, God, it is not the related parts. The interest does not lie in the related parts; the related parts as one-sided are not the existent, presupposed and permanently established, they are accidental merely. But here the related sides, the things and the subject, have their proper va1ue, and they are presupposed as having this value. Locke's reasoning is quite shallow; it keeps entirely to the phenomenal, to that which is, and not to that which is true.
There is another question however: Are these general determinations absolutely true? And whence come they not alone into my consciousness, into my mind and understanding, but into the things themselves? Space, cause, effect, etc., are categories. How do these categories come into the particular? How does universal space arrive at determining itself? This point of view, the question whether these determinations of the infinite, of substance, etc., are in and for themselves true, is quite lost sight of. Plato investigated the infinite and the finite, Being and the determinate, etc., and pronounced that neither of these opposites is of itself true; they are so only as together constituting an identity, wherever the truth of this content may come from. But here the truth as it is in and for itself is entirely set aside and the nature of the content itself is made the main point. It does not matter whether the understanding or experience is its source, for the question is whether this content is in itself true. With Locke, the truth merely signifies the harmony of our conceptions with things; here relation is alone in question, whether the content is an objective thing or a content of the ordinary conception. But it is quite another matter to investigate the content itself, and to ask, “Is this which is within us true? We must not dispute about the sources, for the Whence, the only important point to Locke, does not exhaust the whole question.The interest of the content in and for itself wholly disappears when that position is taken up, and thereby the whole of what is aimed at by Philosophy is given up. On the other hand, when thought is from the beginning concrete, when thought and the universal are synonymous with what is set before us, the question of the relation of the two which have been separated by thought is destitute of interest and incomprehensible. How does thought overcome the difficulties which itself has begotten? Here with Locke none at all have been begotten and awakened. Before the need for reconciliation can be satisfied, the pain of disunion must be excited.
The philosophy of Locke is certainly very comprehensible, but for that very reason it is likewise a popular philosophy to which the whole of the English philosophy as it exists at this day is allied; it is the thinking method of regarding things which is called philosophy carried to its perfection, the form which was introduced into the science which then took its rise in Europe. This is an important moment in culture; the sciences in general and specially the empiric sciences have to ascribe their origin to this movement. To the English, Philosophy has ever signified the deduction of experiences from observations; this has in a one-sided way been applied to physical and economic subjects.