Martin Knutzen
Encyclopedia
Martin Knutzen was a German
Germans
The Germans are a Germanic ethnic group native to Central Europe. The English term Germans has referred to the German-speaking population of the Holy Roman Empire since the Late Middle Ages....

 philosopher, a disciple of Alexander Baumgarten and teacher of Immanuel Kant
Immanuel Kant
Immanuel Kant was a German philosopher from Königsberg , researching, lecturing and writing on philosophy and anthropology at the end of the 18th Century Enlightenment....

, to whom he introduced the physics
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

 of Newton
Isaac Newton
Sir Isaac Newton PRS was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived."...

.

Knutzen studied philosophy, mathematics and physics at the University of Königsberg
University of Königsberg
The University of Königsberg was the university of Königsberg in East Prussia. It was founded in 1544 as second Protestant academy by Duke Albert of Prussia, and was commonly known as the Albertina....

 (the present Kaliningrad
Kaliningrad
Kaliningrad is a seaport and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea...

), gaining his M.A.
Master of Arts (postgraduate)
A Master of Arts from the Latin Magister Artium, is a type of Master's degree awarded by universities in many countries. The M.A. is usually contrasted with the M.S. or M.Sc. degrees...

 degree in 1733 with Dissertatio metaphysica de aeternitate mundi impossibili and becoming a Professor extraordinary of logic
Logic
In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

 and metaphysics
Metaphysics
Metaphysics is a branch of philosophy concerned with explaining the fundamental nature of being and the world, although the term is not easily defined. Traditionally, metaphysics attempts to answer two basic questions in the broadest possible terms:...

 there in 1734. A disciple of Christian Wolff
Christian Wolff (philosopher)
Christian Wolff was a German philosopher.He was the most eminent German philosopher between Leibniz and Kant...

, in the rationalist school, Knutzen was also interested in natural sciences, and taught physics
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

, astronomy
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

 and mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

, besides philosophy. The study of the doctrines of Newton induced him to question Leibniz' and Wolff's theory of pre-established harmony
Pre-established harmony
Gottfried Leibniz's theory of pre-established harmony is a philosophical theory about causation under which every "substance" only affects itself, but all the substances in the world nevertheless seem to causally interact with each other because they have been programmed by God in advance to...

, defending the concept of mechanical causality in the movement of physical objects; his lessons on the matter would influence the later work of Kant, who sought to reconcile the autonomy of the spiritual with the reality of the mechanical in the Critique of Judgement
Critique of Judgement
The Critique of Judgment , or in the new Cambridge translation Critique of the Power of Judgment, also known as the third critique, is a philosophical work by Immanuel Kant...

.


The relation of Knutzen with Kant was extremely limited. Knutzen introduced him to the study of mechanics
Mechanics
Mechanics is the branch of physics concerned with the behavior of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment....

 and optics
Optics
Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behavior of visible, ultraviolet, and infrared light...

, besides discussing faith
Faith
Faith is confidence or trust in a person or thing, or a belief that is not based on proof. In religion, faith is a belief in a transcendent reality, a religious teacher, a set of teachings or a Supreme Being. Generally speaking, it is offered as a means by which the truth of the proposition,...

 extensively. His ample library on natural sciences constituted an invaluable resource for the writing of the first treatise of Kant, Thoughts on the True Estimation of Vital Forces (Gedanken von der wahren Schätzung der lebendigen Kräfte), a mathematical text, and exerted a powerful influence on Kant's thought.

Knutzen would be also an important figure in the formation of Johann Georg Hamann
Johann Georg Hamann
Johann Georg Hamann was a noted German philosopher, a main proponent of the Sturm und Drang movement, and associated by historian of ideas Isaiah Berlin with the Counter-Enlightenment.-Biography:...

.

His Life

Martin Knutzen was born in Könisberg (the present Kaliningrad
Kaliningrad
Kaliningrad is a seaport and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea...

) in 1713, the town in which he died in 1751. His private life was so monotonous, boring and dreary that it did not acquire any interest until his death. Even so, the most important milestones follow.

The first noteworthy point is that, according to his biographers (Beck, 1960) (Erdmann, 1973) (Kuehn, 2001) whom we follow here, Martin Knutzen, the young extraordinary professor of mathematics and philosophy planted and cultivated the seed of philosophy and sciences in Kant.

In actual fact, Knutzen had a dominant personality, which marked Kant’s evolution at the University of Königsberg
University of Königsberg
The University of Königsberg was the university of Königsberg in East Prussia. It was founded in 1544 as second Protestant academy by Duke Albert of Prussia, and was commonly known as the Albertina....

. Founded by Albert, first Duke of Prussia, in 1544, the Albertina University began, in the early 17th century, coinciding with the new found power of the town and the foundation of the Kingdom of Prussia, to attract students not only from the Baltic region but also from other German-speaking territories, this being one of the centres of education of the Prussian administration.

Kant kept in close contact with professor Knutzen. Such was this relationship that he enjoyed unlimited access to Knutzen’s private library. It was Knutzen who introduced Kant to the scientific literature of the era and especially the works of Isaac Newton, who had such a powerful influence on the development of Kant’s own philosophy. Knutzen, however, did not consider Kant to be one of his best students, and favoured Friedrich Johann Buck (1722-1786) or Johann Friedrich Weitenkampf (1726-1758). Moreover, the name of Kant never appeared in the profuse correspondence between Knutzen and Euler, which is evidence of in what little esteem Knutzen held Kant.

Knutzen was 10 years Kant’s senior and reached professorship at the early age of 21 years. His advancedness did not, however, lead him on to greater responsibilities. External pressures prevented him from ever receiving an ordinary professorship. Like his disciple Kant, Knutzen led a life removed from worldly noise and dedicated to study. His sedentarism meant that he never ventured more than thirty miles from his native town of Königsberg.

On 29 January 1751, Flottwell wrote that although Knutzen had inherited first 10,000 then a further 15,000 Thaler, this philosopher was always in a bad mood, had no social contacts and lived in absolute isolation. Only three days after Flottwell wrote this, Knutzen was dead (Kuehn, 2001). Indeed, his temperament, given as he was to impetuousness and academic overexertion, brought his life to an early end at the age of 37 years. At the time of his death, he enjoyed a magnificent reputation and was greatly admired by his students, among whom he numbered Kant. Knutzen acquainted Kant with both the latest scientific advances and discoveries and English empiricism.

Knutzen’s widow remarried a close friend of Kant’s, a doctor of jurisprudence and young lawyer, Johann Daniel Funk (1721-1764). Kant felt quite at home with Funk, and they kept in close contact with each other. Funk had an extremely fascinating personality and led what one might describe as an exceedingly dissolute life. He gave lectures on jurisprudence and, as Hippet said (Borowski, 1804), Precisely because he could live without the income from his lectures, Funk was by far the best of the professors (Magister). Even at that time it was evident to me that gentlemen that had other income had one or more concubines apart from their official spouse. My dear old Funk, who had married the widow of professor Knutzen, a very famous person at the time, did not deprive himself of other diversions apart from the conjugal act, but his lectures were as chaste as the bed of an elegy.

Apparently Funk was popular not only among students but also among the ladies, that is, he was an out-and-out Don Juan. In this respect, the contrast with Knutzen, who led an utterly scholastic life could not be more sharper.

His Thinking and Work

Knutzen sought to strike a balance between Pietist Lutheranism and Christian Wolff’s dogmatic philosophy, trying to compatibilize the teachings of Pietism with the hypotheses of Wolff’s illustrated philosophy. Knutzen saw philosophy not merely as a propaedeutic for gaining access to theology, but as a separate science that established its own postulates. This is patent from one of his writings, published in 1740, the year in which Kant joined the university, titled “Philosophical Proof of the Truth of the Christian Religion” (Knutzen, 1740). This volume, which was to become his most famous work and built him a reputation in the 18th century, stated that philosophy is the depository of rational proof, even of religion itself. In writing this book, not only did Knutzen show how strongly rooted his thinking was in Königsberg’s theological debate, but he also revealed his intimate knowledge of what had until then been an unknown aspect of British philosophy. The book also offers a good picture of Knutzen’s theological standpoint. This work originally appeared as a series of articles in the “Königsberger Intelligenzblätter” (Knutzen, 1745). This way, Knutzen brought a breath of fresh, modern and advanced air into the Prussian cultural milieu dominated by Schultz’s Pietist theology.

Many of his students were proud to have studied with him. For example, Johann Georg Hamann (1730-1788), proponent of the “Sturm und Drang” literary movement, said in his autobiography: I was a student of the famous Knutzen in all his courses on philosophy and mathematics, as well as his private lectures on algebra; I was also a member of the abortive physico-theological society that he founded.]]. Other students like Ludwig Ernst von Borowski (1740-1838) and later biographers like Benno Erdmann (1851-1921) echoed this sentiment.

Philosophically speaking, Knutzen took an anti-Leibnizian standpoint, sustaining that the theory of pre-established harmony was as wrong, just like occasionalism
Occasionalism
Occasionalism is a philosophical theory about causation which says that created substances cannot be efficient causes of events. Instead, all events are taken to be caused directly by God...

, and that the only reasonable theory was that of physical influx, as suggested by Locke
John Locke
John Locke FRS , widely known as the Father of Liberalism, was an English philosopher and physician regarded as one of the most influential of Enlightenment thinkers. Considered one of the first of the British empiricists, following the tradition of Francis Bacon, he is equally important to social...

 and corpuscularism. In actual fact, Leibniz’ theory of pre-established harmony in its strictest form was unacceptable for Knutzen on theological grounds. There were also differences and controversy between what Knutzen, Kant, Leibniz, Descartes
René Descartes
René Descartes ; was a French philosopher and writer who spent most of his adult life in the Dutch Republic. He has been dubbed the 'Father of Modern Philosophy', and much subsequent Western philosophy is a response to his writings, which are studied closely to this day...

 and Newton thought about the concept of living force, dead pressure and momentum. And yet again, Newton was right in the end. Accordingly, Knutzen’s standpoints were closer to British than German philosophers. A similar thing can be said about his epistemology. Indeed, death surprised him when he was translating Locke’s essay entitled “Of the Conduct of the Human Understanding”.

In 1744, an important controversy shook the scientific and academic media of the time. Years earlier, in 1738, Knutzen had predicted that a comet that had been observed in 1698 would reappear in the winter of 1744. This prediction was, apparently, based on Newton’s theory about the course of periodic comets with elliptical orbits of the Sun. (Waschkies, 1987). When a comet actually did appear in that year, Knutzen became an instant celebrity in the town and gained a reputation as a great astronomer well beyond the confines of Königsberg. In 1744, Knutzen published a book titled “Rational thoughts on the comets, in which is examined and represented their nature and their character, as well as the causes of their motion, and at the same time given a short description of the noteworthy comet of this year”. This book was, according to Christian Jacob Kraus (1753-1807), Kant’s most intelligent disciple, responsible for awakening Kant’s interest in this science, and it was this book that led him to write his own “Universal Natural History and Theory of the Heavens” (Kant, 1755), which appeared eleven years later. Like other students, Kant may have viewed Knutzen as a hero.

However, doubts were soon raised and by none other than the great and prolific mathematician, Leonhard Euler. In actual fact, Euler showed, in letters to Knutzen and in an article that appeared at the end of 1744, that Knutzen’s prediction had not come true. The reason was clear: the 1744 comet was not identical to the 1698 comet. This meant that Knutzen did not know enough physics (Waschkies, 1987). Euler sustained that it would be at least four to five hundred years before the 1698 comet could be seen again. But this refutation did not seem to matter much to most of the people of Königsberg and even less so to Knutzen and his students. They never acknowledged that their master’s prediction had been wrong. In fact, in a poem written for the occasion of Knutzen’s burial, he was compared with Newton, Descartes, Leibniz, Locke and Boyle.

Knutzen’s work on comets was in any case largely motivated by theological concerns. It was written in part as a response to a tract, penned by Johann Heyn and entitled “Attempt of a Consideration of the Comet, the Deluge and the Prelude of the Final Judgement; in Accordance with Astronomical Reasons and the Bible…”, which appeared in Berlin and Leipzig in 1742. Heyn argued that the fear of comets as a bad omen was well founded. Knutzen, referencing Newton, objected to this view and concluded that Heyn was an alarmist and obscurantist. In return, Heyn accused Knutzen of plagiarism, as the prediction had been made a year earlier in the “Leipziger Gelehrte Anzeigen”. He also suggested that Knutzen had not sufficiently proved the respective identities of the 1698 and 1744 comets. Knutzen and his students ignored Heyn’s reference to Euler, just as they did Euler’s original criticism.

Knutzen’s understanding of scientific and mathematical matters was inadequate for advancing the discussion of the more technical aspects of physics. Knutzen did not belong to that “small elite” of scientists on the continent who understood the details of Newtonian physics. His knowledge of calculus was far from perfect. Relying more on mechanical models than on rigorous calculations, he had some understanding of Newton’s “Principia” but was unable to make any original contribution to science. Nor was he willing to draw a sharp line between science and metaphysics. Theological and apologetic concerns dictated what was and was not acceptable at least as much as scientific views did. As a scientist, he was rather limited even by 18th century standards.

Of Knutzen it was said that, as a student, he approached not the Aristotelians but “the men who were qualified enough to be able to instruct him in the most recent philosophy, mathematics”. Knutzen taught himself calculus and appears to have studied algebra from Wolf’s work in Latin (Buck, 1768). Although perhaps Knutzen’s most important contribution to mathematics, or, to be more precise, number theory, is more of a historical sort. In actual fact, Knutzen, in his exceptional essay entitled “Von dem Wahren Auctore der Arithmeticae Binariae, …” in English “On the True Author of Binary Arithmetic, also known as Leibniz’ Dyadic” (Knutzen, 1742), rightly claims that the binary number system credited by many, including the man himself, to Leibniz, was actually attributable to the Spanish bishop Juan Caramuel de Lobkowitz (Caramuel, 1670), and outlined in the “Meditatio Proemialis” of his work, entitled, true to the Baroque style of the time, “Mathesis bíceps vetrus et nova. In omnibus, et singulis veterum, et recientorum placita examinantur; interdum corriguntur, semper dilucidantur…”.

Works

  • Philosophischer Beweis von der Wahrheit der christlichen Religion, 1740
  • Philosophische Abhandlung von der immateriellen Natur der Seele, 1744
  • Vernüftige Gedanken con den Cometen, 1744
  • Systema causarum efficientium seu commentatio philosophica de commercio mentis et corporis per influxum physicum explicando, 2nd ed. 1745
  • Elementa philosophiae rationalis seu logicae cum generalis tun specialioris mathematica methodo demonstrata, 1747
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