important concept in Kant’s whole philosophy,27 essentially derives simply from observing that what is called the ‘I’ is a unity only because it is aware of itself as something identical in the horizon of time – in other words, through the process of recollection, presentation and anticipation. Thus Kant’s principle of identity itself is, if you like, actually drawn from psychology, which is why it also already involves the dimension of time; and, precisely because it is temporal in character, consciousness is determined in the first place as an empirical consciousness. Here I am merely drawing your attention to one side of the issues involved. For we are talking about an extraordinarily complex and many-sided question. Nor with these observations do I simply wish to tie Kant down to a merely psychological thesis. I have already mentioned that the psychological and the anti-psychological themes in Kant’s thought work in some friction with each other, but here I just wanted to show you that the dividing line between pure Kantian philosophy and the realm of psychology is not nearly as clear, as sharp, or as unambiguous as Kant himself intended. And while the full force of the central element in Kant’s critique of reason, namely the deduction of the pure forms of the understanding,28 specifically and originally derives from the way that this deduction clings so closely to the experience of concrete and individual human consciousness, i.e. precisely through a certain proximity to psychology, it is surely remarkable to note that Kant, with his inimitable perceptiveness and his inimitable honesty and intellectual integrity, actually points out that he himself thereby runs the danger of making transcendental philosophy appear to depend upon the empirical; and in a sense one can understand the development of Kant’s philosophy as an ever more emphatic turn against the perspective of psychology. Thus in the Critique of Practical Reason you will discover much more invective against any possible kind of psychological interpretation than you can in the first edition of the Critique of Pure Reason, where Kant was not yet quite so strict about these things – and this from a deep sense that any such static and absolute separation of the transcendental sphere of purely intellectual processes from the psychological sphere that involves the temporal embodiment of mind cannot actually be carried out. Now if Kant so strongly repudiated the real individual human subject in contrast to the pure ‘I think’ that accompanies all my representations,29 i.e. in contrast to consciousness as a pure formal unity of experience,30 then he would also clearly have to reject any reflection on society, namely sociology, as having any grounding or constitutive force as far as philosophy is concerned. For society, after all, is in fact something like a functional connection, a functional connection that obtains between individual empirical human beings, which would then indeed also appear as factors within a constituted field of knowledge. When Kant speaks in the Prolegomena of ‘consciousness in general’,31 he does not actually mean – as the expression tends to suggest, and I believe for good reason – the consciousness which distinctively belongs to all human beings; that is to say, he does not mean something social, or a social consciousness, since for Kant the qualification ‘in general’ means consciousness as such, namely a consciousness without which something like an intrinsically coherent experience or an intrinsically valid case of knowledge could never be entertained at all. But in this famous formulation of ‘consciousness in general’ you may notice once again, and by way of anticipation, that it was not so easy for Kantian philosophy either to accomplish this separation from sociology, admittedly a discipline which did not specifically exist as sociology in his time. For what, in the final analysis, is this ‘consciousness in general’? If you try and grasp what this ‘in general’ means, you will probably be able to think only of a consciousness that is not your consciousness, or my consciousness, or anyone else’s consciousness but consciousness in general – in other words, a consciousness common to us all. The logical extension implied by the expression ‘in general’ already includes the ‘we’ in its very meaning, or, if you like, already implicitly includes society, although Kant would not be able to ascribe central philosophical significance to society precisely because it belongs to the realm of the constituted and enjoys a merely derived status. Now Kant certainly did recognize the significance of empirical psychology, and he would – I think it is safe to say – probably also have been able to recognize the significance of an empirical sociology. In the period when Kantian thought developed, which was still the period of Enlightenment and bourgeois culture in its ascendant phase, if I may be allowed to use such expressions, thinkers had certainly already sought to protect the traditional concept of philosophy from being confused, contaminated or conflated with the merely empirical; however, they did not yet display that exaggerated fear of the empirical that has become widespread today and serves in a way to complement that blind enthusiasm for ‘the facts’ and everything empirical which is equally widespread these days. This yawning gulf between extreme fear of the factical, on the one hand, and an intoxication or orgiastic obsession with the facts, on the other, can sometimes make it look as though we of the older generation are the reckless ones, while the younger generation seems to display the sobriety that we sought in vain to acquire.32 But things were not yet like that in Kant’s time. On the contrary, in the context of his critique of reason there is still plenty of room for psychology – and, I might plausibly add, for sociology too – as long as we make the following qualification: ‘All this belongs to the realm of the constituted; none of this may provide your starting point of departure, if you are trying to justify the fundamental principles of philosophy itself.’
In the climate that prevails today around the problem of philosophy and sociology, there has been a quite decisive change precisely in this regard; when I said right at the beginning of this lecture that, in a sense, the Kantian problematic is still directly relevant for us in this connection, I must now correct that claim somewhat or present it in a more nuanced manner. In other words, what we find today is that philosophy is now hardly inclined to allow sociology any room at all, and that both fields have parted from each other in mutual acrimony. They now display a mortal fear of coming into contact with each other and thus I might even say of infecting each other – something it would almost need a Freud to explain. The idea that the sciences must be legitimated as purely and autonomously as possible without borrowing anything from elsewhere is an inheritance from the nineteenth century which has played a very important role in connection with the problematic notion of presuppositionless enquiry,33 a notion that continues to draw on that inherited idea; while philosophy is increasingly thrown back upon its own resources as the sphere of its authority is progressively cut back by the advances of the so-called positive sciences (and it is of the essence of scientific progress that poor old philosophy, which once also embraced geography, medicine and who knows what else, increasingly finds itself robbed of any connection with such fields). The result is that philosophy guards even more jealously the position that it has now at least managed to establish for itself as just one branch among other branches of enquiry, which is why it not only refuses to tolerate any invasions of its own territory on the part of sociology or psychology but even attempts wherever possible to attack these disciplines even in areas where they perhaps seem to be most appropriate. Thus in the Kantian tradition today, insofar as this still survives in Germany, we no longer find that Kantian tolerance towards psychology as a kind of positive science in contrast to philosophy. There is no question of this, and what we find instead is that psychology and especially sociology appear from the start as a threat to the philosophical peace; and where modern existential ontology does pay any attention to psychology or sociology, it specifically tries to do so in a way that gets rid of the empirical salt, of the empirical thorn, and seeks to grasp the psychological realm by means of extremely formal categories that have been purged of any actual concrete meaning. In this connection you might think of the fashion for so-called Daseinsanalyse or ‘existential analysis’,34 a trend which is very pronounced today, in contrast to the psychoanalysis that explores psychical life as a field of concrete experience. Thus we can say that modern philosophers in general, if they are philosophers in an emphatic sense and not simply methodologists like the logical positivists for example, are anti-sociological in outlook – with the exception, I would add, of a very few individuals, some of whom you will find here in Frankfurt. Thus the anti-empirical tendency of philosophy is now extended to fields that have been removed from the realm of philosophy. Where there is still something such as philosophy to be found, it tends to treat sociology negatively and refuses to let it be even in its native territory, so to speak. And in the next lecture you will hear how the reverse is also true