Born: 24-Jan-1679
Birthplace: Breslau, Silesia, Germany
Died: 9-Apr-1754
Location of death: Halle, Germany
Cause of death: unspecified

Gender: Male
Race or Ethnicity: White
Occupation: Philosopher

Nationality: Germany
Executive summary: Philosopher of the Leibniz model

Christian Wolff, German philosopher and mathematician, the son of a tanner, was born at Breslau on the 24th of January 1679. At the university of Jena he studied first mathematics and physics, to which he soon added philosophy. In 1703 he qualified as Privatdozent in the university of Leipzig, where he lectured until 1706, when he was called as professor of mathematics and natural philosophy to Halle. Before this time he had made the acquaintance of Gottfried Leibniz, of whose philosophy his own system is a modification. In Halle Wolff limited himself at first to mathematics, but on the departure of a colleague he added physics, and presently included all the main philosophical disciplines. But the claims which Wolff advanced on behalf of the philosophic reason appeared impious to his theological colleagues. Halle was the headquarters of Pietism, which, after a long struggle against Lutheran dogmatism, had itself assumed the characteristics of a new orthodoxy. Wolff's professed ideal was to base theological truths on evidence of mathematical certitude, and strife with the Pietists' broke out openly in 1721, when Wolff, on the occasion of laying down the office of pro-rector, delivered an oration "On the Practical Philosophy of the Chinese" (English translation, 1750), in which he praised the purity of the moral precepts of Confucius, pointing to them as an evidence of the power of human reason to attain by its own efforts to moral truth. For ten years Wolff was subjected to attack, until in a fit of exasperation he appealed to the court for protection. His enemies, however, gained the ear of the king Frederick William I and represented to him that, if Wolff's determinism were recognized, no soldier who deserted could be punished, since he would only have acted as it was necessarily predetermined that he should. This so enraged the king that he at once deprived Wolff of his office, and commanded him to leave Prussian territory within forty-eight hours on pain of a halter. The same day Wolff passed into Saxony, and presently proceeded to Marburg, to which university he had received a call before this crisis. The landgrave of Hesse received him with every mark of distinction, and the circumstances of his expulsion drew universal attention to his philosophy. It was everywhere discussed, and over two hundred books and pamphlets appeared for or against it before 1737, not reckoning the systematic treatises of Wolff and his followers. In 1740 Frederick William, who had already made overtures to Wolff to return, died suddenly, and one of the first acts of his successor, Frederick the Great, was to recall him to Halle. His entry into the town on the 6th of December 1740 partook of the nature of a triumphal procession. In 1743 he became chancellor of the university, and in 1745 he received the title of Freiherr from the elector of Bavaria. But his matter was no longer fresh, he had outlived his power of attracting students, and his classrooms remained empty. He died on the 9th of April 1754.

The Wolffian philosophy held almost undisputed sway in Germany until it was displaced by the Kantian revolution. It is essentially a common-sense adaptation or watering-down of the Leibnitzian system; or, as we can hardly speak of a system in connection with Leibnitz, Wolff may be said to have methodized and reduced to dogmatic form the thoughts of his great predecessor, which often, however, lose the greater part of their suggestiveness in the process. Since his philosophy disappeared before the influx of new ideas and the appearance of more speculative minds, it has been customary to dwell almost exclusively on its defects -- the want of depth or freshness of insight, and the aridity of its neo-scholastic formalism, which tends to relapse into verbose platitudes. But this is to do injustice to Wolff's real merits. These are mainly his comprehensive view of philosophy, as embracing in its survey the whole field of human knowledge, his insistence everywhere on clear and methodic exposition, and his confidence in the power of reason to reduce all subjects to this form. To these must be added that he was practically the first to "teach philosophy to speak German." The Wolffian system retains the determinism and optimism of Leibnitz, but the monadology recedes into the background, the monads falling asunder into souls or conscious beings on the one hand and mere atoms on the other. The doctrine of the pre-established harmony also loses its metaphysical significance, and the principle of sufficient reason introduced by Leibnitz is once more discarded in favor of the principle of contradiction which Wolff seeks to make the fundamental principle of philosophy. Philosophy is defined by him as the science of the possible, and divided, according to the two faculties of the human individual, into a theoretical and a practical part. Logic, sometimes called philosophia rationales, forms the introduction or propaedeutic to both. Theoretical philosophy has for its parts ontology or philosophia prima, cosmology, rational psychology and natural theology; ontology treats of the existent in general, psychology of the soul as a simple non-extended substance, cosmology of the world as a whole, and rational theology of the existence and attributes of God. These are best known to philosophical students by Immanuel Kant's treatment of them in the Critique of Pure Reason. Practical philosophy is subdivided into ethics, economics and politics. Wolff's moral principle is the realization of human perfection.

Wolff's most important works are as follows: Anfangsgr�nde aller mathematischen Wissenschaften (1710); Vern�nftige Gedanken van den Kraften des menschlichen Verstandes (1712); Vern. Ged. van Gott, der Welt und der Seele des Menschen (1719); Vern. Ged. van der Menschen Thun und Lassen (1720); Vern. Ged. van dem gesellschaftlichen Leben der Menschen (1721); Vern. Ged. van den Wirkungen der Natur (1723); Vern. Ged. van den Absichten der nat�rlichen Dinge (1724); Vern. Ged. van dem Gebrauche der Theile in Menschen, Thieren und Pflanzen (1725); the last seven may briefly be described as treatises on logic, metaphysics, moral philosophy, political philosophy, theoretical physics, teleology, physiology: Philosophia rationalis, sive logica (1728); Philosophia prima, sive Ontologia (1729); Cosmologia generalis (1731); Psychologia empirica (1732); Psychologia rationalis (1734); Theologia naturalis (1736-37); Philosophia practica universalis (1738-39); Jus naturae and Jus Gentium (1740-49); Philosophia moralis (1750-53). His Kleine philosophische Schriften have been collected and edited by G. F. Hagen (1736-40). His autobiography (Eigene Lebensbeschreibung, was edited by H. Wuttke, 1841.

    University: University of Jena
    Theological: Privatdozent, University of Leipzig
    Professor: Natural Philosophy, University of Halle
    Professor: University of Marburg
    Professor: University of Halle (1740-54)
    Administrator: Chancellor, University of Halle (1743-54)

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