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Influence and legacy

Schopenhauer remained the most influential German philosopher until the First World War. His philosophy was a starting point for a new generation of philosophers including Julius Bahnsen, Paul Deussen, Lazar von Hellenbach, Karl Robert Eduard von Hartmann, Ernst Otto Lindner, Philipp Mainländer, Friedrich Nietzsche, Olga Plümacher and Agnes Taubert. His legacy shaped the intellectual debate, and forced movements that were utterly opposed to him, neo-Kantianism and positivism, to address issues they would otherwise have completely ignored, and in doing so he changed them markedly. The French writer Maupassant commented that "to-day even those who execrate him seem to carry in their own souls particles of his thought". Other philosophers of the 19th century who cited his influence include Hans Vaihinger, Volkelt, Solovyov and Weininger.

Schopenhauer was well read by physicists, most notably Einstein, Schrödinger, Wolfgang Pauli, and Majorana. Einstein described Schopenhauer's thoughts as a "continual consolation" and called him a genius. In his Berlin study three figures hung on the wall: Faraday, Maxwell, Schopenhauer. Konrad Wachsmann recalled: "He often sat with one of the well-worn Schopenhauer volumes, and as he sat there, he seemed so pleased, as if he were engaged with a serene and cheerful work."

When Erwin Schrödinger discovered Schopenhauer ("the greatest savant of the West") he considered switching his study of physics to philosophy. He maintained the idealistic views during the rest of his life. Wolfgang Pauli accepted the main tenet of Schopenhauer's metaphysics, that the thing-in-itself is will.

But most of all Schopenhauer is famous for his influence on artists. Richard Wagner became one of the earliest and most famous adherents of the Schopenhauerian philosophy. The admiration was not mutual, and Schopenhauer proclaimed: "I remain faithful to Rossini and Mozart!" So he has been nicknamed "the artist's philosopher". See also Influence of Schopenhauer on Tristan und Isolde.

Under the influence of Schopenhauer, Leo Tolstoy became convinced that the truth of all religions lies in self-renunciation. When he read Schopenhauer's philosophy, Tolstoy exclaimed "at present I am convinced that Schopenhauer is the greatest genius among men.... It is the whole world in an incomparably beautiful and clear reflection." He said that what he has written in War and Peace is also said by Schopenhauer in The World as Will and Representation.

Jorge Luis Borges remarked that the reason he had never attempted to write a systematic account of his world view, despite his penchant for philosophy and metaphysics in particular, was because Schopenhauer had already written it for him.

Other figures in literature who were strongly influenced by Schopenhauer were Thomas Mann, Thomas Hardy, Afanasy Fet, J.-K. Huysmans and George Santayana. In Herman Melville's final years, while he wrote Billy Budd, he read Schopenhauer's essays and marked them heavily. Scholar Brian Yothers notes that Melville "marked numerous misanthropic and even suicidal remarks, suggesting an attraction to the most extreme sorts of solitude, but he also made note of Schopenhauer's reflection on the moral ambiguities of genius." Schopenhauer's attraction to and discussions of both Eastern and Western religions in conjunction with each other made an impression on Melville in his final years.

Sergei Prokofiev, although initially reluctant to engage with works noted for their pessimism, became fascinated with Schopenhauer after reading Aphorisms on the Wisdom of Life in Parerga and Paralipomena. "With his truths Schopenhauer gave me a spiritual world and an awareness of happiness."

Friedrich Nietzsche owed the awakening of his philosophical interest to reading The World as Will and Representation and admitted that he was one of the few philosophers that he respected, dedicating to him his essay "Schopenhauer als Erzieher", one of his Untimely Meditations.

Early in his career, Ludwig Wittgenstein adopted Schopenhauer's epistemological idealism, and some traits of Schopenhauer's influence (particularly Schopenhauerian transcendentalism) can be observed in the Tractatus Logico-Philosophicus. Later on, Wittgenstein rejected epistemological transcendental idealism for Gottlob Frege 's conceptual realism. In later years, Wittgenstein became highly dismissive of Schopenhauer, describing him as an ultimately shallow thinker. His friend Bertrand Russell had a low opinion on the philosopher, and even came to attack him in his History of Western Philosophy for hypocritically praising asceticism yet not acting upon it.

Opposite to Russell on the foundations of mathematics, the Dutch mathematician L. E. J. Brouwer incorporated Kant's and Schopenhauer's ideas in the philosophical school of intuitionism, where mathematics is considered as a purely mental activity instead of an analytic activity wherein objective properties of reality are revealed. Brouwer was also influenced by Schopenhauer's metaphysics, and wrote an essay on mysticism.

Schopenhauer's philosophy has made its way into a novel, The Schopenhauer Cure, by American existential psychiatrist and emeritus professor of psychiatry Irvin Yalom.

Schopenhauer's philosophy, and the discussions on philosophical pessimism it has engendered, has been the focus of contemporary thinkers such as David Benatar, Thomas Ligotti, and Eugene Thacker. Their work also served as an inspiration for the popular HBO TV series True Detective as well as Life Is Beautiful. In this regard, Schopenhauer is sometimes considered the founding father of today's antinatalism.