Schopenhauer was the son of a wealthy merchant, Heinrich Floris Schopenhauer, and his wife, Johanna, who later became famous for her novels, essays, and travelogues. In 1793, when Danzig came under Prussian sovereignty, they moved to the free city of Hamburg. Arthur enjoyed a gentlemanly private education. He then attended a private business school, where he became acquainted with the spirit of the Enlightenment and was exposed to a Pietistic attitude sensitive to the plight of man. In 1803 he accompanied his parents for a year on an extensive journey through Belgium, England, France, Switzerland, and Austria.

The sudden death of his father in April 1805 precipitated a decisive change in his life. His mother and his young sister Adele moved to Weimar, where his mother succeeded in joining the social circle of the poets J.W. von Goethe and Christoph Martin Wieland (often called the German Voltaire). Arthur himself had to remain in Hamburg for more than a year, yet with more freedom to engage in the arts and sciences. In May 1807 he was finally able to leave Hamburg. During the next two years, spent in Gotha and Weimar, he acquired the necessary academic preparation for attendance at a university.

In the fall of 1809 he matriculated as a student of medicine at the University of Göttingen and mainly attended lectures on the natural sciences. As early as his second semester, however, he transferred to the humanities, concentrating first on the study of Plato and Immanuel Kant (Kant, Immanuel). From 1811 to 1813 he attended the University of Berlin (where he heard such philosophers as J.G. Fichte and Friedrich Schleiermacher, with little appreciation); and in Rudolstadt, during the summer of 1813, he finished his dissertation, which earned him the doctor of philosophy degree from the University of Jena.

The following winter (1813–14) he spent in Weimar, in intimate association with Goethe, with whom he discussed various philosophical topics. In that same winter the Orientalist Friedrich Majer, a disciple of Johann Gottfried Herder, introduced him to the teachings of Indian (Indian philosophy) antiquity—the philosophy of Vedānta and the mysticism of the Vedas (Hindu scriptures). Later, Schopenhauer considered that the Upaniṣads (Upanishad) (philosophic Vedas), together with Plato and Kant, constituted the foundation on which he erected his own philosophical system.

In May 1814 he left his beloved Weimar after a quarrel with his mother over her frivolous way of life, of which he disapproved. He then lived in Dresden until 1818, associating occasionally with a group of writers for the Dresdener Abendzeitung (“Dresden Evening Newspaper”). Schopenhauer finished his trea tise Über das Sehn und die Farben (1816; “On Vision and Colours”), supporting Goethe against Isaac Newton.

His next three years were dedicated exclusively to the preparation and composition of his main work, Die Welt als Wille und Vorstellung (1819; The World as Will and Idea). The fundamental idea of this work—which is condensed into a short formula in the title itself—is developed in four books composed of two comprehensive series of reflections that include successively the theory of knowledge (epistemology) and the philosophy of nature (nature, philosophy of), aesthetics, and ethics.

The first book begins with Kant. The world is my representation, says Schopenhauer. It is only comprehensible with the aid of the constructs of man's intellect—space, time, and causality. But these constructs show the world only as appearance, as a multiplicity of things next to and following one another—not as the thing in itself, which Kant considered to be unknowable. The second book advances to a consideration of the essences of the concepts presented. Of all the things in the world, only one is presented to a person in two ways: he knows himself externally as body or as appearance, and he knows himself internally as part of the primary essence of all things, as will. The will is the thing in itself; it is unitary, unfathomable, unchangeable, beyond space and time, without causes and purposes. In the world of appearances, it is reflected in an ascending series of realizations. From the blind impulses in the forces of inorganic nature, through organic nature (plants and animals) to the rationally guided actions of men, an enormous chain of restless desires, agitations, and drives stretch forth—a continual struggle of the higher forms against the lower, an eternally aimless and insatiable striving, inseparably united with misery and misfortune. At the end, however, stands death, the great reproof that the will-to-live receives, posing the question to each single person: Have you had enough?

Whereas the first two books present the will in an affirmative mode, the last two, dealing with aesthetics and ethics, surpass them by pointing to the negation of the will as a possible liberation. Evoking as their leading figures the genius and the saint, who illustrate this negation, these books present the “pessimistic” world view that values nonbeing more highly than being. The arts summon man to a will-less way of viewing things, in which the play of the passions ceases. To the succession of levels achieved by the realizations of the will corresponds a gradation of levels in the arts, from the lowest—the art of building (architecture)—through the art of poetry to the highest of arts—music. But the arts liberate a person only momentarily from the service of the will. A genuine liberation results only from breaking through the bounds of individuality imposed by the ego. Whoever feels acts of compassion, selflessness, and human kindness and feels the suffering of other beings as his own is on the way to the abnegation of the will to life, achieved by the saints of all peoples and times in asceticism. Schopenhauer's anthropology and sociology do not, in the manner of Hegel, commence with the state or with the community; they focus upon man—patient, suffering man who toils by himself—and show him certain possibilities of standing his ground and of living together with others.

The book marked the summit of Schopenhauer's thought. In the many years thereafter, no further development of his philosophy occurred, no inner struggles or changes, no critical reorganization of basic thoughts. From then onward, his work consisted merely of more detailed exposition, clarification, and affirmation.

In March 1820, after a lengthy first tour of Italy and a triumphant dispute with Hegel, he qualified to lecture at the University of Berlin. Though he remained a member of the university for 24 semesters, only his first lecture was actually held; for he had scheduled (and continued to schedule) his lectures at the same hour when Hegel lectured to a large and ever-growing audience. Clearly, he could not successfully challenge a persistently advancing philosophy. Even his book received scant attention. For a second time Schopenhauer went on a year-long trip to Italy, and this was followed by a year of illness in Munich. In May 1825 he made one last attempt in Berlin, but in vain. He now occupied himself with secondary works, primarily translations.

During his remaining 28 years, he lived in Frankfurt, which he felt to be free from the threat of cholera, and left the city only for brief interludes. He had finally renounced his career as a university professor and lived henceforth as a recluse, totally absorbed in his studies (especially in the natural sciences) and his writings. His life now took on the shape that posterity first came to know: the measured uniformity of the days; the strict, ascetic lifestyle modeled after Kant; the old-fashioned attire; the tendency to gesticulative soliloquy.

His leisure, though, was not idle. In 1836, after 19 years of “silent indignation,” he published his short treatise Über den Willen in der Natur (On the Will in Nature), which skillfully employed the queries and findings of the rapidly expanding natural sciences in support of his theory of the will. The preface for the first time openly expressed his devastating verdict on the “charlatan” Hegel and his clique. He also published essays.

The second edition of The World as Will and Idea (1844) included an additional volume but failed to break what he called “the resistance of a dull world.” The little weight that Schopenhauer's name carried became evident when three publishers rejected his latest work. Finally, a rather obscure Berlin bookseller accepted the manuscript without remuneration. In this book, which brought the beginning of worldwide recognition, Schopenhauer turned to significant topics hitherto not treated individually within the framework of his writings: the work of six years yielded the essays and comments compiled in two volumes under the title Parerga und Paralipomena (1851). The Parerga (“Minor Works”) include fragments concerning the history of philosophy; the famous treatise “Über die Universitäts-Philosophie”; the enigmatically profound “Transzendente Spekulation über die anscheinende Absichtlichkeit im Schicksale des Einzelnen” (“Transcendent Speculation on the Apparent Premeditation in Personal Fate”); the “Versuch über das Geistersehn und was damit zusammenhängt” (“Essay on Ghost-seeing and Its Related Aspects”)—the first investigation, classification, and critical reflection concerning parapsychology; and the “Aphorismen zur Lebensweisheit” (“Aphorisms on Practical Wisdom”), a serene and brilliant account garnered from his long life. The Paralipomena (“Remnants”), or as Schopenhauer called them “separate, yet systematically ordered thoughts on various subjects,” included essays on writing and style, on women, on education, on noise and sound, and on numerous other topics.

During the last years of his life, he added the finishing touches to most of his works. Even a third edition of The World as Will and Idea, containing an exultant preface, appeared in 1859 and, in 1860, a second edition of his Ethics. Soon after Schopenhauer's sudden and painless death, Julius Frauenstädt published new and enlarged editions, with many handwritten additions, of the Parerga and Paralipomena (1862), On the Fourfold Root (1864), the essay On the Will in Nature (1867), the treatise on colours (1870), and finally even a fourth edition of his main work (1873). Later that same year Frauenstädt published the first complete edition of his works in six volumes.

During this time, the actual impact and influence of Schopenhauer began to spread. By turning away from spirit and reason to the powers of intuition, creativity, and the irrational, his thought has affected—partly via Nietzsche—the ideas and methods of vitalism, of life philosophy, of existential philosophy, and of anthropology. Through his disciple Julius Bahnsen and through Eduard von Hartmann's philosophy of the unconscious, the connection to modern psychology and to Sigmund Freud (Freud, Sigmund) and his school can be established. The philosophy of history of Jacob Burckhardt, a Swiss cultural historian, also proceeds from Schopenhauer. Within the German cultural realm, Schopenhauer's influence on music and literature brings to mind such diverse names as Richard Wagner, Hans Pfitzner, Wilhelm Busch, Gerhart Hauptmann, Frank Wedekind, and Thomas Mann. Since 1911 the Schopenhauer Society in Frankfurt am Main has been dedicated to the study, exposition, and dissemination of Schopenhauer's philosophy.