Kant's Critical Philosophy Book

2021 Review
This is the second time, maybe the third time I've read this book. I am impressed by how concise and spot on Deleuze is in summarizing Kant.

Despite Deleuze's great reading of Kant in some sense Deleuze did miss something. Later on Deleuze came to see Kant as being someone worthy of deeper elucidation, and I believe this to be the case still... in some sense, you could read Kant as being more general than Deleuze, that is, Deleuze's work "fits" within Kant's rubric to some degree, even if Deleuze is richer than Kant and more sophisticated in many ways. I kind of wished that Deleuze took this direction in his reading of Kant, to twist Kant around but even still, this more conservative reading of Kant is okay...

Still, 5 stars, because it's a tight tight book. Asking Deleuze to be able to read Kant against his own work is perhaps a little different than what Deleuze sought to do with Kant.
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2014 Review
Deleuze is perhaps the best reader of texts that I know of. In this short work, he presents the immanent critique hidden within Kant's philosophical product.

In doing so, Deleuze shows both how Kant is not a rationalist or an empiricist, and how Kant is the anti-philosopher. Although Kant today is considered to be the epitome of modern philosophers, at that time Kant sought to break through the limits of Descartes' subjectivity to achieve a deeper understanding of the human condition one not founded on false or speculative reasoning.

As Deleuze points out, Kant's methodology works in this way by highlighting the structural points of inflection within his philosophy. These structural features exist immanent within each of the conditions Kant outlines within empirical reason -- ultimately to exist as a faculty that stands on its own. In other words, Kant notices what is the same within each relation despite empirical difference. Each of the three domains of experience (feeling, desiring and knowing) balance out the others to provide the higher immanent vehicles that together legislate human balance (judgement, understanding and reason). As Kant analyzes types of experiences encountered within empirical reason, Deleuze shows how Kant points to the suprasensible as the beyond that grounds Kant's philosophy (and humanity) as being that is both good and moral in the face of Law immanent within transcendental reasoning.

What makes Kant so difficult to approach is his rejection of speculative reason. Bad philosophy has a habit of legislating positions as filters for experience, using a top-down approach to the field of experience. Kant sticks strictly to the thinnest difference within each domain, using the form of language to describe immanent relations of their predicates within itself... in a sense noting the universal form inherent within each field as the criteria for what a faculty is, what is an immanent vehicle within human processing. In other words, Kant finds the universal arising within our navigation and arrangement of phenomena as a spontaneous law grounded within our consciousness, what is the same no matter what, and how those samenesses inter-relate.

The point of all this is to show the reason for reason, to show how the structure of reason itself from the immanent faculties that operate as transcendental reason becomes its own reason, the accord of which reveals for us our place in the world. We are made to be reasonable, and our reasonableness itself is what provides the grounds for our existence, and the meaning of our existence, which Kant insists is the natural product of our natural and good synthesis with nature... not for the goal of fulfilling instinct/nature but for incorporating the beyond, a limit we ourselves cannot understand:

When imagination is confronted with its limit by something which goes beyond it in all respects it goes beyond its own limit itself, admittedly in a negative fashion, by representing to itself the inaccessibility of the rational Idea, and by making this very inaccessibility something which is present in sensible nature.

For through the imagination, no doubt, finds nothing beyond the sensible world to which it can lay hold, still this thrusting aside of the sensible barriers gives it a feeling of being unbounded; and that removal is thus a presentation of the infinite. As such it can never be anything more than a negative presentation - but still it expands the soul.

Deleuze does all this in this breathtakingly short book. Deleuze places Kantian desire as the organizing feature, in the synthesis of feeling, rationality and understanding within the free 'accord' of the faculties and how pure relation forms the immanent critique of human experience; bringing to light the clear synthesis of the transcendental method and the three faculties... and in this sense, conjoins with Deleuze's own readings of philosophers, as Deleuze can rightly be said to be a philosopher who only practices immanent critiques.

The only thought I have; what I wished Deleuze focused on as well, was Kant's question of freedom. Towards the end of his life, Kant had an answer, an undesirable answer to how our freedom comes about, one which tortured him in his last days. This issue, was not brought up. But perhaps this was because Kant never wrote a specific work to outline this issue.