Friedrich Heinrich Jacobi (; 25 January 1743 – 10 March 1819) was an influential German philosopher, literary figure, and socialite.
He is notable for popularizing nihilism, a term coined by Obereit in 1787, and promoting it as the prime fault of Enlightenment thought particularly in the philosophical systems of Baruch Spinoza, Immanuel Kant, Johann Fichte and Friedrich Schelling.
Jacobi advocated Glaube (variously translated as faith or "belief") and revelation instead of speculative reason. In this sense, Jacobi can be seen to have anticipated present-day writers who criticize secular philosophy as relativistic and dangerous for religious faith.
In his time, he was also well known among literary circles for his critique of the Sturm and Drang movement, and implicitly close associate and intimate partner of Johann Wolfgang von Goethe, and his visions of atomized individualism. His literary projects were devoted to the reconciliation of Enlightenment individualism with social obligation.
He was the younger brother of poet Johann Georg Jacobi and the father of the great psychiatrist Maximilian Jacobi.
Biography
Early life
He was born at Düsseldorf, the second son of a wealthy sugar merchant, and was educated for a commercial career, which included a brief apprenticeship at a merchant house in Frankfurt-am-Main during 1759. Following, he was sent to Geneva for general education. Jacobi, of a retiring, meditative disposition, associated himself at Geneva mainly with the literary and scientific circle (of which the most prominent member was Georges-Louis Le Sage).
He studied closely the works of Charles Bonnet, as well as the political ideas of Jean-Jacques Rousseau and Voltaire. In 1763 he was recalled to Düsseldorf, and in the following year he married Elisbeth von Clermont and took over the management of his father's business.
After a short time, he gave up his commercial career, and in 1770 he became a member of the council for the duchies of Jülich and Berg. He distinguished himself by his ability in financial affairs and his zeal in social reform. Jacobi kept up his interest in literary and philosophic matters by an extensive correspondence. His mansion at Pempelfort, near Düsseldorf, was the centre of a distinguished literary circle. He helped to found a new literary journal with Christoph Martin Wieland. Some of his earliest writings, mainly on practical or economic subjects, were published in Der Teutsche Merkur.
Here too appeared in part the first of his philosophic works, Edward Allwill's Briefsammlung (1776), a combination of romance and speculation. This was followed in 1779 by Woldemar, a philosophic novel, of very imperfect structure, but full of genial ideas, and giving the most complete picture of Jacobi's method of philosophizing.
In 1779, he visited Munich following his appointment as minister and privy councillor for the Bavarian department of customs and commerce. He opposed the mercantilistic policies of Bavaria and intended to liberalize local customs and taxes; but, after a short stay there, differences with his colleagues and with the authorities of Bavaria, as well as his unwillingness to engage in a power struggle, drove him back to Pempelfort. The experience as well as its aftermath led to the publication of two essays in which Jacobi defended Adam Smith's theories of political economy. These essays were followed in 1785 by the work which first brought Jacobi into prominence as a philosopher.
Pantheism controversy
A conversation with Gotthold Lessing in 1780 in which Lessing avowed that he knew no philosophy in the true sense of that word, save Spinozism, led him to a protracted study of Spinoza's works. After Lessing's death, just a couple of months later, Jacobi continued to engage with Spinozism in an exchange of letters with Lessing's close friend Moses Mendelssohn, which began in 1783. These letters, published with commentary by Jacobi as Briefe über die Lehre Spinozas (1785; 2nd ed., much enlarged and with important Appendices, 1789), expressed sharply and clearly Jacobi's strenuous objection to a dogmatic system in philosophy, and drew upon him the vigorous enmity of the Aufklärer.
