Abstract

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Galen’s Epistemology: Experience, Reason, and Method in Ancient Medicine ed. by R. J. Hankinson and Matyáš HavrdaPatricia MarechalR. J. Hankinson and Matyáš Havrda, editors. Galen’s Epistemology: Experience, Reason, and Method in Ancient Medicine. Cambridge: Cambridge University Press, 2022. Pp. 348. Hardback, $99.99; paperback, $36.99.Galen famously says that some things are “securely known” (bebaiôs gnôston) (De optima doctrina I 41.15 Kühn). But how do we know things, and what entitles us to take our beliefs to be securely grounded? An optimist on this point, Galen is not seduced by hyperbolic skeptical concerns and argues that, if we follow a systematic method of inquiry, we will build theories that are not only persuasive and useful, but also true. Unsurprisingly, Galen’s views on knowledge in general and its foundation are deeply informed by debates about the possibility and nature of medical knowledge. His method integrates both rationalist and empiricist insights, thereby overcoming the divide between two of the main medical sects of his time. According to Galen, reason and experience must be combined in medical theory and practice.This much is well known. The eleven essays in this volume take further steps to understand Galen’s scientific method by exploring in detail how reason and experience contribute to scientific discoveries and demonstrations. With the exception of two essays that tackle questions of general epistemological significance—Galen’s take on skepticism (Barnes) and his theory of vision (Ierodiakonou)—the majority of the contributions offer detailed descriptions of how Galen’s method integrates rational tools with experience. Some of the essays offer a close reading of Galen’s methodological discussions on these issues (Kupreeva, Hankinson, Tieleman), while others analyze his method in action by examining concrete cases and applications (Havrda, Singer, Lewis). As is to be expected, most of the essays focus on knowledge in the domain of natural philosophy—specifically, medicine—but one fruitfully extends the discussion to Galen’s ethical writings (Kaufman). The last two essays address the reception of Galen’s scientific methodology in Alexandrian Late Antiquity (Wakelnig) and the Islamic Middle Ages (Koetschet).This is an excellent volume that deepens our efforts to reconstruct Galen’s views on the foundation of epistēmē. One thread stands out. Galen argues that experience (peira) is indispensable to knowing and understanding the natural world. He also claims that experience that is not guided by reason will not take us far in our inquiries. The contributions to the volume allow us to appreciate two further facts about Galen’s views on the nature of experience. On the one hand, for Galen, experience itself is always cognitively and theoretically loaded since it is categorized and filtered through conceptual and linguistic categories. On the other hand, Galen is aware that sensory experiences are fine-grained, and he suggests that fully capturing the content of experience linguistically is hard and, sometimes, impossible. Scientific statements are often only a rough indication of the complex realities observed and felt by doctors and patients. Thus, errors may arise in our choice of terms, in the statement of scientific propositions, and in our classifications of experience. These two points could be in tension, and readers are left with questions pertaining to how both of them feature in Galen’s account of the content of experience. Regardless, the discussions in this volume reveal Galen’s acute sensitivity to issues related to the structure, cognitive penetration, and theory-ladenness of experience, as well as the problematic relationship between sense data and the basic empirical statements in [End Page 657] our scientific theories. These essays, then, further confirm Galen’s sophistication as a philosopher and scientist, and open further avenues for research on these questions.Since I am not able to comment on all the essays in the detail they deserve, I instead offer a brief indication of the contents of each. I hope this will allow the reader to get a sense of the richness and importance of this collection.In chapter 1, Jonathan Barnes addresses Galen’s dismissal of skepticism. While giving due consideration to his opposition to skepticism, Barnes persuasively shows that Galen fails to put skeptical worries...