Jakob Friedrich Fries

Jakob Friedrich Fries
Born 23 August 1773
Died 10 August 1843 (1843-08-11) (aged 69)
Alma mater University of Leipzig
University of Jena
Era 19th-century philosophy
Region Western Philosophy
School Post-Kantianism[1]
Institutions University of Jena
Main interests
Notable ideas
Empirical psychology as the basis of critical and transcendental philosophy

Jakob Friedrich Fries (German: [fʀiːs]; 23 August 1773 – 10 August 1843) was a German post-Kantian[1] philosopher. He was born in Barby (present-day Saxony-Anhalt, Germany) and died in Jena (present-day Thuringia, Germany).

Life and career

Fries studied theology at the academy of the Moravian brethren at Niesky, and philosophy at the Universities of Leipzig and Jena. After travelling, in 1806 he became professor of philosophy and elementary mathematics at the University of Heidelberg.

Though the progress of his psychological thought compelled him to abandon the positive theology of the Moravians, he retained an appreciation of its spiritual or symbolic significance. His philosophical position with regard to his contemporaries had already been made clear in his critical work Reinhold, Fichte und Schelling (1803),[3] and in the more systematic treatises System der Philosophie als evidente Wissenschaft (1804) and Wissen, Glaube und Ahnung (1805).

Fries' most important treatise, the Neue oder anthropologische Kritik der Vernunft (2nd ed., 1828–1831), was an attempt to give a new foundation of psychological analysis to the critical philosophy of Immanuel Kant. In 1811 he published his System der Logik (ed. 1819 and 1837), and in 1814 Julius und Evagoras, a philosophical romance. He was also involved in public polemics, and in 1816 wrote Ueber die Gefährdung des Wohlstandes und des Charakters der Deutschen durch die Juden (On the Danger Posed by the Jews to German Well-Being and Character), advocating among other things a distinct sign on the dress of Jews to distinguish them from the general population, and encouraging their emigration from German lands. He blamed the Jews for the ascendant role of money in society and called for Judaism to be "extirpated root and branch" from German society.

In 1816 he was invited to Jena to fill the chair of theoretical philosophy (including mathematics, physics, and philosophy proper), and entered upon a crusade against the prevailing Romanticism. In politics he was a strong Liberal and Unionist, and he did much to inspire the organization of the Burschenschaft. He also published a pamphlet calling from the exclusion of the Jews from public life in Germany. In 1816 he had published his views in a brochure, Von deutschem Bund und deutscher Staatsverfassung, dedicated to "the youth of Germany", and his influence gave a powerful impetus to the agitation which led in 1819 to the issue of the Carlsbad Decrees by the representatives of the German governments.

Karl Sand, the murderer of August von Kotzebue, was one of Fries's pupils; and a letter of his, found on another student, warning Sand against participation in secret societies, was twisted by the suspicious authorities into evidence of Fries' conspiracy. He was condemned by the Mainz Commission; the Grand Duke of Weimar was compelled to deprive him of his professorship; and he was forbidden to lecture on philosophy. The grand duke, however, continued to pay him his stipend, and in 1824 he was recalled to Jena as professor of mathematics and physics, receiving permission also to lecture on philosophy in his own rooms to a select number of students. Finally, in 1838, the unrestricted right of lecturing was restored to him.

Fries was involved in a dispute with the contemporary German philosopher G. W. F. Hegel. In the preface to his Philosophy of Right, Hegel criticised Fries' participation in student events and his role in the Burschenschaft. In Hegel's view, Fries was dependent upon "immediate perception and contingent imagination";[4] his views were emotional rather than rational. Hegel argued that Fries' methodology was not sufficiently scientific and that, therefore, his conclusions were illogical. However, Fries did respond to these criticisms and accused Hegel of defending the existing order, and his own privileged position within it. He argued that, "Hegel's metaphysical mushroom has grown not in the gardens of science but on the dunghill of servility".[5] For Fries, Hegel's theories merely added up to a defence of the establishment and, specifically, the Prussian authorities.


The most important of the many works written during his Jena professorship are:[6]


  1. 1 2 Terry Pinkard, German Philosophy 1760-1860: The Legacy of Idealism, Cambridge University Press, 2002, pp. 199–212.
  2. William R. Woodward, Hermann Lotze: An Intellectual Biography, Cambridge University Press, 2015, p. 83.
  3. A comparative study of Karl Leonhard Reinhold, Johann Gottlieb Fichte and Friedrich Wilhelm Joseph Schelling.
  4. G. W. F. Hegel, Elements of the Philosophy of Right, Cambridge University Press, Cambridge, 1991, pp. 15–6
  5. J. F. Fries, Letter of 6 January 1821 in Gunther Nicolin, Hegel in Berichten seiner Zeitgenossen, Felix Meiner, Hamburg, 1970, p. 221.
  6.  Rines, George Edwin, ed. (1920). "Fries, Jakob Friedrich". Encyclopedia Americana.


Further reading

External links

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