Critique of Judgment

The Critique of Judgement is the third and final installment of Immanuel Kant's critical philosophy, following the Critique of Pure Reason and the Critique of Practical Reason. Kant presents the work as the completion of his entire critical enterprise. Where his first two Critiques addressed theoretical knowledge of nature and the moral law of freedom, this third work examines the power of judgement, the faculty that mediates between understanding and reason, and asks whether it possesses independent a priori principles of its own, meaning principles that hold independently of experience.

In a Preface and Introduction, Kant lays the systematic groundwork. He divides philosophy into two domains: the philosophy of nature, governed by concepts of nature and the understanding, and the philosophy of morals, governed by the concept of freedom and reason. These two domains appear fundamentally separated, yet the concept of freedom is "meant to actualize in the sensible world the end proposed by its laws" (12), so some principle of unity must be found. Kant locates this principle in the power of judgement. He distinguishes determining judgement, which subsumes particulars under given universals, from reflective judgement, which must discover the universal for a given particular. Reflective judgement requires its own transcendental principle, a basic condition the mind must presuppose for experience to be coherent: the purposiveness of nature, the regulative idea that nature's empirical laws form a system suited to our cognitive faculties. He then divides the critique into two main parts: the critique of aesthetic judgement and the critique of teleological judgement, which concerns judging natural things in terms of ends or purposive organization.

Part One addresses aesthetic judgement, beginning with the Analytic of the Beautiful, which Kant organizes through four "moments." In the first moment (quality), he argues that the judgement of taste is aesthetic rather than cognitive, referring a representation to the subject's feeling rather than to the object through concepts. He distinguishes the beautiful from the agreeable (which gratifies the senses) and the good (which engages the will), arguing that beauty alone involves a disinterested delight, indifferent to the object's existence. In the second moment (quantity), Kant argues that the beautiful pleases universally but without a concept: Because the delight is disinterested, the subject expects agreement from everyone, yet this universality is subjective, arising from the free play of imagination and understanding. In the third moment (relation), Kant introduces purposiveness without purpose: in judging something beautiful, we perceive a form that seems purposive for our cognitive faculties without referring it to any determinate end. He distinguishes free beauty (presupposing no concept of what the object should be) from dependent beauty (which does presuppose such a concept). In the fourth moment (modality), the judgement of taste involves exemplary necessity, demanding agreement based on the presupposition of a common sense, an ideal norm of shared subjective conditions.

The Analytic of the Sublime treats a distinct mode of aesthetic experience. While the beautiful concerns the form of an object and brings a positive feeling of the furtherance of life, the sublime is found even in formless objects that provoke a representation of limitlessness. Kant divides the sublime into two types. The mathematically sublime occurs when the imagination fails to comprehend an immense magnitude (such as the pyramids or vast systems of nebulae) and thereby awakens awareness of reason's superiority over the senses. The dynamically sublime occurs when nature is represented as a fearful power (thunderclouds, volcanoes, the boundless ocean) that we can contemplate from safety, discovering within ourselves a moral vocation independent of physical nature. In both cases, sublimity resides not in the object but in the mind's consciousness of its own rational and moral capacity beyond sensory experience.

The remainder of Part One addresses the deduction of aesthetic judgements, meaning Kant's justification for their claim to universal validity, along with the theory of fine art and the concept of genius. For judgements of the beautiful, Kant argues that the free harmonious play of imagination and understanding, presupposed in all cognition, justifies the claim to universal agreement. He defends the autonomy of taste against appeals to authority or rules, and argues that an immediate interest in the beauty of nature is a mark of good moral disposition, an interest that vanishes the moment the object is revealed to be artificial. Kant defines fine art as production through freedom that advances the culture of the mental powers, and argues that fine art is the art of genius, "the innate mental aptitude through which nature gives the rule to art" (136). He introduces aesthetic ideas, representations of the imagination that evoke more thought than any determinate concept can capture, and identifies these as the animating principle of fine art.

The Dialectic of Aesthetic Judgement resolves an antinomy of taste. The thesis holds that the judgement of taste is not based on concepts (otherwise it would admit of proof), while the antithesis holds that it must be based on concepts (otherwise no contention about it would be possible). Kant resolves this by distinguishing determinate concepts (on which the judgement does not rest) from the indeterminate concept of the supersensible substrate of phenomena, the non-sensory underlying ground of appearances (on which it does). Beauty, he argues, is the symbol of morality: both please immediately and disinterestedly, both involve a kind of freedom, and both claim universal validity.

Part Two turns to teleological judgement. The Analytic of Teleological Judgement examines the objective purposiveness of nature, particularly in organisms. Kant argues that organisms are the only beings in nature that must be conceived as natural ends: a tree, for example, produces itself generically through reproduction, individually through growth, and its parts are reciprocally dependent on the whole. An organism possesses inherent formative power, unlike a machine, which has only motive power. Yet this concept of a natural end is regulative for reflective judgement, not constitutive; it guides investigation without determining the object's ultimate cause.

The Dialectic of Teleological Judgement addresses the apparent conflict between mechanical and teleological principles. As regulative maxims, these principles are compatible: one directs us to push mechanical explanation as far as possible, while the other permits appeal to final causes where mechanism proves insufficient. Kant surveys rival systems, including the ancient philosopher Epicurus's appeal to chance, the early modern philosopher Spinoza's necessitarian account, and hylozoism (the doctrine that matter itself is alive), finding none dogmatically satisfactory. He argues that our discursive understanding makes the concept of natural ends necessary for us, though an intuitive understanding might grasp organisms' unity without it.

The Appendix on the Method of Teleological Judgement addresses broader implications for natural science, theology, and morality. Kant argues that man is the ultimate end of nature not in terms of happiness but in terms of culture, the aptitude for setting rational ends. The final end of creation can only be man as a moral being under the moral law. He critiques physico-theology (the argument from design) as unable to yield a determinate concept of God, since empirical evidence cannot establish omniscience or moral wisdom. He develops a moral proof of God's existence: the moral law prescribes the highest good as a final end, and realizing this end requires the assumption of a moral world-cause. This argument produces moral conviction, not theoretical knowledge. Kant concludes that freedom alone, among all ideas of pure reason, proves its reality in nature, making possible the connection of the ideas of God and immortality with the natural world and grounding a religion in which duties are recognized as divine commands.

An appended "First Introduction," a longer preliminary draft, elaborates these systematic foundations, clarifying the concept of the technic of nature (the idea that nature works as if artfully to aid our judgement) and offering a transcendental definition of pleasure.