The World as Will and Representation

The World as Will and Representation is the central philosophical work of Arthur Schopenhauer. In his preface, Schopenhauer states that the entire work develops a single thought from multiple perspectives, requiring the reader to treat it as an organic whole. He identifies Immanuel Kant's critical philosophy as an indispensable prerequisite and also acknowledges debts to the philosopher Plato and the ancient Indian scriptures known as the Upanishads. He positions his philosophy as the natural continuation of Kant's critical project, particularly Kant's distinction between phenomenon, or the world as it appears to a knowing subject, and thing-in-itself, the underlying reality independent of perception.

The work divides into four books, each treating one aspect of Schopenhauer's central insight. The First Book establishes that the world exists only as representation, a term denoting the mental image that arises in a knowing subject's consciousness. Schopenhauer opens with the proposition that no one knows a sun or an earth directly, only an eye that sees a sun, a hand that feels an earth. The division into subject (the knower) and object (the known) is the most fundamental form of all experience, prior even to time, space, and causality. He traces this insight through the philosophers René Descartes, George Berkeley, and Kant, as well as the Vedanta philosophy of India, all of whom recognized in different ways that the world as we perceive it is conditioned by the knowing mind.

Schopenhauer identifies the principle of sufficient reason as the governing law of all representations. This principle takes four forms: causality (governing physical changes), logical ground (governing the validity of judgments), the ground of being (governing spatial and temporal relations), and motivation (governing voluntary actions). He defines matter as identical with causality, arguing that its entire being consists in acting. The understanding, which he sharply distinguishes from reason, has one sole function: the immediate knowledge of cause and effect that transforms raw sensory data into perception of objects in space. Reason, by contrast, is the faculty unique to humans that produces abstract concepts from perceptual knowledge, enabling language, science, planning, and deliberate action. Concepts derive their entire content from perception and can never fully match its richness, approximating it as a mosaic approximates a painting. He defines science as the systematic arrangement of knowledge through subordination of concepts, and contends that philosophy differs from all other sciences by presupposing nothing as known and investigating the inner nature of the world rather than tracing relations among phenomena. He closes the First Book by noting that the world considered purely as representation is one-sided, and that another side remains to be revealed.

The Second Book identifies this other side as will. Schopenhauer argues that the knowing subject is not a disembodied intellect but is rooted in the world through a body whose actions are known in a twofold way: outwardly as movements in space, and inwardly as acts of will. The act of will and the bodily action are not cause and effect but one and the same event given through two different modes of knowledge. Schopenhauer extends this insight by analogy to the whole of nature. What manifests in the human being as conscious willing manifests in animals as instinct, in plants as blind vegetative striving, and in inorganic matter as the fundamental forces of gravity, magnetism, and chemical affinity. These forces differ from human willing only in the degree of their manifestation, not in their inner essence. The will as thing-in-itself lies outside time, space, and causality, and therefore outside plurality. Time and space constitute what Schopenhauer, borrowing a term from medieval scholastic philosophy, calls the principium individuationis, the principle by which the one will appears as innumerable individual things. He identifies the definite grades of the will's objectification with Plato's Ideas, the eternal archetypal forms that individual things imperfectly copy. Each species, each fundamental force, represents a distinct Idea. The universal conflict pervading nature, from chemical forces competing for matter to animals preying on one another, expresses the will's essential inner conflict with itself. The will has no ultimate goal; every attained end becomes the beginning of a new striving, so that existence oscillates perpetually between pain and boredom.

The Third Book turns to aesthetics, arguing that art provides a temporary escape from the will's endless striving. Ordinary knowledge serves the will by tracking the relations among things according to the principle of sufficient reason. Aesthetic contemplation, by contrast, occurs when the subject ceases to be a willing individual and becomes a pure, will-less subject of knowing, absorbed entirely in the object until the object rises from its particular existence to the eternal Idea of its species. This state constitutes the experience of the beautiful. When the contemplated object threatens or dwarfs the individual, requiring a conscious, forceful tearing away from the will's interests, the experience becomes that of the sublime. Schopenhauer surveys the arts in ascending order. Architecture reveals the lowest Ideas, the conflict between gravity and rigidity made visible in stone. Landscape painting, animal painting, and sculpture reveal progressively higher grades of the will's objectification. Poetry presents the Idea of humanity through significant characters in significant situations, with tragedy at its summit, depicting the will's deepest self-conflict through great suffering and the possibility of resignation. Music occupies a unique position: It is not a copy of Ideas but a direct copy of the will itself. The bass represents the lowest grades of nature; the middle voices represent intermediate grades; and the melody represents the highest grade, the intellectual life and striving of human beings. Music expresses the innermost essence of every emotion in its pure quintessence, without attachment to particular objects or events.

The Fourth Book addresses ethics. Schopenhauer defines the affirmation of the will-to-live as the continued willing undisturbed by self-knowledge, encompassing all bodily maintenance, reproduction, and passionate desire. He argues that because all willing springs from need, and because every satisfaction is merely the temporary removal of a particular pain, no lasting happiness is possible. Suffering is essential to life, increasing in proportion to the clarity of consciousness. He traces egoism to the principium individuationis: Each individual experiences himself as the whole will and the entire knowing subject, placing his own existence before everything else. Wrong consists in one individual's affirmation of will extending so far as to deny the will appearing in another, through violence, coercion, or cunning. Right is the negation of wrong. The State arises from the rational cooperation of egoistic individuals who renounce wrongdoing in exchange for mutual protection. Eternal justice, by contrast, is the metaphysical truth that tormentor and tormented are ultimately one, since the same will lives in both. Schopenhauer identifies compassion as the foundation of all genuine virtue: the intuitive recognition, expressed in the Vedic formula tat tvam asi ("This art thou"), that one's own inner nature is identical with that of every other being. Justice arises when this recognition partially penetrates the principium individuationis; active benevolence and love arise when the distinction between self and other fades further. When knowledge of the will's essential nature becomes so vivid that it serves as a quieter, a form of insight that silences all willing, the will turns away from life. This produces voluntary renunciation, asceticism, and complete will-lessness. Schopenhauer identifies two paths to this denial: the rarer path through purely intellectual knowledge of universal suffering, and the more common path through personally experienced extreme suffering that breaks the will's hold. He condemns suicide as the opposite of genuine denial, since the person who dies by suicide affirms the will-to-live and rejects only its particular conditions. He draws extensive parallels between Christian mysticism, Hindu asceticism, and Buddhist renunciation, arguing that despite different doctrines, the inner experience described is the same. The work closes by acknowledging that the denial of the will appears, from the standpoint of those still affirming life, as a transition into nothingness, but that this nothingness is only relative. For those in whom the will has been silenced, this world with all its suns and galaxies is nothing, while what remains after the abolition of the will is the only genuine reality.

An appendix provides a detailed criticism of Kant's philosophy. Schopenhauer praises Kant's distinction between phenomenon and thing-in-itself as the greatest advance in metaphysics but criticizes Kant for deriving the thing-in-itself through the causal law, which Kant himself restricted to phenomena. He rejects Kant's table of 12 categories as an architectonic artifice, retaining only causality as the sole function of the understanding. He also critiques Kant's moral philosophy for grounding ethics in the categorical imperative, an unconditional moral law derived from pure reason, rather than in the compassion that Schopenhauer considers virtue's true source.