And from this necessary connection and progressive order of the various propositions indicated arise also the resolve, the counsel, the exhortation, to "return," as they say, to this or that thinker, to this or that philosophical school of the past. Certainly, such returns are impossible, understood literally; they are also a little ridiculous, like all impossible attempts. We can never return to the past, precisely because it is the past. No one is permitted to free himself from the problems which are put by the present, and which he must solve with all the means of the present (which includes in it the means of the past). Nevertheless, it is a fact that the history of philosophy everywhere resounds with cries of return. Those very people who in our day deride the "return to Hume" or the "return to Kant," proceed to advise the "return to Schelling," or the "return to Hegel." This means that we must not understand those "returns" literally and in a material way. In truth, they do not express anything but the necessity and the ineliminability of the logical process explained above, for which the affirmations contained in philosophical problems appear connected with one another in such a way that the one follows the other, surpasses it, and includes it in itself. Empiricism, practicism, intellectualism, agnosticism, mysticism, are _eternal stages of the search for truth_. They are eternally relived and rethought in the truth which each contains. Thus it would be necessary for him who had not yet turned his attention to aesthetic facts, to begin by passing them before his eyes, that is to say, he must first traverse the empirical stage (about equivalent to that occupied by mere men of letters and mere amateurs of art); and while he is at this stage, he must be aroused to feel the want of a principle of explanation, by making him compare his present knowledge with the facts, and see if they are explained by it, that is to say, if they be utilitarian and moral, or logical and intellective. Then we should drive him who has made this examination to the conclusion, that the aesthetic activity is something different from all known forms, a form of the spirit, which it yet remains to characterize. For the empiricists of Aesthetic, intellectualism and moralism represent progress; for the intellectualists, hedonistic and moralistic alike, agnosticism is progress and may be called Kant. But for Kantians, who are real Kantians (and not neo-Kantians), progress is represented by the mystical and romantic point of view; not because this comes after the doctrine of Kant chronologically, but because it surpasses it ideally. In this sense, and in this sense alone, we should now "return" to the romantic Aesthetic. We should return to it, because it is ideally superior to all the researches in Aesthetic made in the studies of psychologists, of physio-psychologists, and of psycho-physiologists of the universities of Europe and of America.