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Matyáš Havrda

Galen’s physiology—his theory of elements, mixtures and the emergence of natural capacities—compels him to conceive of each part of the soul as a peculiar mixture of elementary qualities in the material substance of the organ (the liver, the heart or the brain) in which it is located. The reason why Galen, nevertheless, refrains from making a dogmatic assertion about the substance of the soul, or of human nature in general, is the acknowledged failure to account for two goal-directed activities—the formation of bodily organs and human intelligence—in terms of elementary qualities and their mixtures.

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Matyáš Havrda

This paper concerns the lost treatise On Demonstration (DD) written by Galen of Pergamum (129 – ca. 215 AD). Its aim is to reconstruct the purpose of this treatise, especially the question of how, in Galen’s view, it was supposed to be useful for doctors. While showing that the methods described in DD were designed to settle disagreements among doctors, the paper argues that the choice of topics discussed there was partly determined by Galen’s worry about a mode of reasoning, exemplified by scepticism, that leads people into believing that plain phenomena, such as those on which both medical practice and theory are based, do not exist.


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Matyáš Havrda

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Matyáš Havrda

Abstract

The article is a collection of comments to various passages of Clement of Alexandria’s Stromata V (1,1-2; 2,5-6; 3,2; 6,3; 8,6; 18,3; 23,2-24,2; 38,5; 71,2-3; 83,5; 90,2; 98,4; 133,7; 141,3). Its aim is to complement earlier research by re-examining the syntactic structure or the meaning of terms, by adducing new parallels or by proposing fresh explanations of difficult segments of the text.

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Matyáš Havrda

The article is a source-critical study of the doctrine of demonstration in the so-called eighth book of Stromata by Clement of Alexandria. After an overview of the doctrine, as presented in Str. VIII 3,1-15,1, it examines parallels in philosophical literature, especially in the writings of Galen. This examination brings to light correspondences (not all of which have been previously noted) whose number and proximity opens the question of the relation between Galen and the source of Stromata VIII. After considering three explanations to account for these similarities, the article proposes that Galen’s lost writing on demonstration could be Clement’s source.

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Matyáš Havrda

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Matyáš Havrda