Plato: Medicine

This article concerns the so-called irrigation system in the Timaeus’ biology (77a-81e), which replenishes our body’s tissues with resources from food delivered as blood. I argue that this system functions mainly by the natural like-to-like motion of the elements and that the circulation of blood is an important case study of Plato’s physics. We are forced to revise the view that the elements attract their like. Instead, similar elements merely tend to coalesce with each other in virtue of their tactile (...) features as the atomists describe. The notion of attraction is replaced with this notion of mere coalescence. I begin by outlining how blood is made from food. I then argue that an understanding of health and disease compels us to read Plato as if he were an atomist and to abandon the popular scholarly interpretations according to which the elements attract each other. (shrink)

I argue that, according to Plato, the body is the sole cause of psychic disorders. This view is expressed at Timaeus 86b in an ambiguous sentence that has been widely misunderstood by translators and commentators. The goal of this article is to offer a new understanding of Plato’s text and view. In the first section, I argue that although the body is the result of the gods’ best efforts, their sub-optimal materials meant that the soul is constantly vulnerable to the (...) body’s influences. In the second section, I argue that every psychic disorder is a disruption of the motions of the inner psychic circles by the body; moreover, I defend my translation of 86b. In the final section, I argue that the goal of education is to restore the circles to their original orbits, and I disarm a possible objection that bad education is also a cause of psychic disorder. (shrink)

Scholarship on Plato's Timaeus has paid relatively little attention to Tim. 77a–81, a seemingly disjointed passage on topics including plants, respiration, blood circulation, and musical sounds. Despite this comparative neglect, commentators both ancient and modern have levelled a number of serious charges against Timaeus' remarks in the passage, questioning the coherence and explanatory power of what they take to be a theory of respiration. In this paper, I argue that the project of 77a–81e is not to sketch theories of respiration, (...) circulation, and digestion, but to explain how the human body is maintained in light of and despite constant environmental depletion. Further, I argue that in order to understand this account of “the replenishing system,” we need to understand Timaeus' striking analogy of the fish trap or nassa. Commentators have generally focused directly on the workings of the bodily construction that Timaeus likens to a fish trap, but without considering how we should understand the analogy qua analogy. I develop a functional reading of the analogy that yields a coherent account of the replenishing system on which previous criticisms of Timaeus' remarks on respiration do not arise. Aside from lending greater unity to the passage, both internally and within its immediate context in the dialogue, this account of the replenishing system contributes to our understanding of Timaeus' reason-and-necessity explanatory framework as applied to the human body and has noteworthy implications for specific explanatory principles, in particular like-to-like motion and circular thrust. (shrink)

At Plato’s Phaedrus 270c, Socrates asks whether one can know souls without knowing ‘the whole.’ Phaedrus answers that ‘according to Hippocrates’ the same demand on knowing the whole applies to bodies. What parallel is intended between soul-knowledge and body-knowledge and which medical passages illustrate the analogy have been much debated. Three dominant interpretations read ‘the whole’ as respectively (1) environment, (2) kosmos, and (3) individual soul or body; and adduce supporting Hippocratic passages. But none of these interpretations accounts for the (...) Phaedrus’ rhetorical method. A better reading sees the whole as the genos ‘soul,’ as the Phaedrus’ taxonomies divide that genus. (shrink)

Name der Zeitschrift: Rhizomata Jahrgang: 5 Heft: 2 Seiten: 148-176.

By comparing the role of harmony in Eryximachus’ discourse with other Platonic passages, especially from the Timaeus, this article aims to provide textual evidence concerning Plato’s conception of cosmological medicine as “harmonic techne”. The comparison with other dialogues will enable us to demonstrate how Eryximachus’ thesis is consistent with Plato’s cosmology — a cosmology which cannot be reduced to a physical conception of reality but represents the expression of a dialectical, and erotic cosmos, characterized by the agreement of parts. Arguably, (...) Eryximachus’ discourse is expression of the Platonic tendency to translate onto the philosophical plane the implications of a model peri physeos. Harmonic techne is thus always linked to the theme of moral responsibility: the philosopher is also doctor, musician and demiurges in his harmonizing activity. The speech of Eryximachus can be approached as a Platonic step which is fundamental for establishing the need for a “medicine” to cure disorder, with a view to obtaining a cosmos ordered according to the harmonic principle. (shrink)

Susan B. Levin argues that Plato's engagement with medicine is richer than previously recognized and that he views it as an important rival for authority on nature and flourishing. Levin shows further that Plato's work, particularly the Laws, holds significant promise for bioethics that has so far been nearly untapped.

Near the end of his speech, Timaeus outlines a theory of bodily health and disease which has seemed to many commentators loosely unified or even inconsistent . But this section is better unified than it has appeared, and gives us at least one important insight into the workings of physical causality in the Timaeus. I argue first that the apparent disorder in Timaeus’s theory of disease is likely a deliberate effect planned by the author. Second, the taxonomy of disease in (...) the passage consists of one genus subsuming two species. Third, in Timaeus’s theory, health lies between perfect stability and a chaos of all possible motions; this indicates a conception of health as the activation of the body's powers in the right way. A power is a property directed towards bringing about some change. Fourth, the activation of these powers can change depending on the location of their possessors. This last point shows that causation among the physical items in the Timaeus involves structures as well as pushes. (shrink)

Plato’s Timaeus provides a significant, original account of diseases afflicting the body and soul. The causes of disease are explained according to the same physical principles that account for the motion of the four elements in the universe. As a result, medical expertise concerning the microcosm of the human body depends on cosmological expertise concerning the macrocosm of the universe. in addition, the methods of division and collection (diairesis and sunagōgē) that Plato uses in other late dialogues are employed in (...) the Timaeus to classify ailments according to differences in their dunamis. Each of the three main kinds of disease is caused by a unique kind of bodily motion, which explains why the same body parts, humours, and elements are involved in multiple kinds of disease. (shrink)

A reprint of the Routledge edition of 1935.