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Liber physiognomiae

Liber physiognomiae is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Liber physiognomiae rather than just read about it. In short: Liber physiognomiae (Classical Latin: [ˈliːbɛr pʰʏsɪ.ɔŋˈnoːmɪ.ae̯], Ecclesiastical Latin: [ˈliber fizi.oˈɲomi.e]; The Book of Physiognomy) is a work by the Scottish mathematician, philosopher, and scholar Michael Scot concerning physiognomy; the work is also the final book of a trilogy known as the Liber introductorius. The Liber physiognomiae itself is divided into three sections, which deal with various concepts l…

Liber physiognomiae — main illustration
Liber physiognomiae — illustration

Key takeaways

  • Liber physiognomiae belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Liber physiognomiae to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Liber physiognomiae from memory before moving on to harder problems.

Reference excerpt

Liber physiognomiae (Classical Latin: [ˈliːbɛr pʰʏsɪ.ɔŋˈnoːmɪ.ae̯], Ecclesiastical Latin: [ˈliber fizi.oˈɲomi.e]; The Book of Physiognomy) is a work by the Scottish mathematician, philosopher, and scholar Michael Scot concerning physiognomy; the work is also the final book of a trilogy known as the Liber introductorius. The Liber physiognomiae itself is divided into three sections, which deal with various concepts like procreation, generation, dream interpretation, and physiognomy proper. The information found in the Liber physiognomiae seems to have been derived largely from Arabic copies of Aristotelian and Pseudo-Aristotelian works. The work was written in the early 13th century for Frederick II, the Holy Roman Emperor. It was first printed in 1477. Liber physiognomiae would go on to be very popular, and would be reprinted many times. Scot's work had a major influence on physiognomy itself, and heavily affected how it would be approached and applied in the future.

Background Liber physiognomiae was written by the Scottish mathematician Michael Scot (AD 1175 – c. 1232) and is the final entry in a divination-centered trilogy, collectively titled the Liber introductorius (The Great Introductory Book). This trilogy also includes the Liber quatuor distinctionum (The Book of the Four Distinctions) and the Liber particularis (The Singular Book).

Contents

Liber physiognomiae, as the title suggests, concerns physiognomy, or a technique by which a person's character or personality is deduced based on their outer appearance. Scot refers to this as a "doctrine of salvation" (Phisionomia est doctrina salutis), as it easily allows one to determine if a person is virtuous or evil. The book is relatively short, comprising about sixty octavo pages. The work is usually divided into around one hundred chapters, with the number of chapters and their divisions differing greatly depending on what manuscript is being consulted. While the chapter headings vary across manuscripts, scholars are in agreement that the work is made up of three distinct sections. The first of these deals with the concepts of procreation and generation, largely according to the doctrines of Aristotle and Galen. This section opens by stressing the important influence of the stars before it deals with topics concerning human sexual intercourse. The book then moves onto the topics of conception and birth, and the author then explores the physical signs of pregnancy. The final two chapters of this section deal with animals; the penultimate chapter focuses on "animals in genere et in specie" (i.e. in regards to genus and species), while the final details an idiosyncratic system for differentiating the various types of animals. The second section begins to focus specifically on physiognomy, considering different organs and body regions that index the "character and faculties" of individuals. Early chapters in this portion of the book are written in a medical style, and they detail signs in regards to "temperate and healthy bod[ies] ... repletion of bad humours and excess of blood, cholera, phlegm, and melancholy", before turning to particular sections of the body. Several following chapters discuss dreams and their meanings. Scot argues that dreams are: true or false; represent past, present, or future events; or are entirely meaningless. The second section comes to an end with chapters concerning auguries and sneezes, respectively. The third and final section covers body parts, and explicates what the characteristics of these portions may reveal about the nature of the person in question. The final chapter in this section warns the would-be physiognomist to withhold judgement based solely on one part of their body, but rather to "tend always to a general judgement based on the majority of all [the person's] members." This is because another part which has not been consulted may readily counter a conclusion suggested by a part that has. Scot also argues that a physiognomist should take into account a person's "age, long residence in one place, long social usage, excessive prevalence of the humours of his complexion beyond what is customary, accidental sickness, violence, accidents contrary to nature, and a defect of one of the five natural senses."

Sources According to the physiognomy scholar Martin Porter, the Liber physiognomiae is a "distinctly Aristotelian" compendium of "the more Arabic influenced 'medical' aspects of natural philosophy." Indeed, it seems likely that Scot made use of several Aristotelian and Pseudo-Aristotelian works in the writing of the Liber physiognomiae, many of which were derived from Arabic copies. The first of these is an Arabic translation of the Historia Animalium. The second is the Kitāb Sirr al-Asrār (Arabic: كتاب سر الأسرار; known in Latin as the Secreta Secretorum), an Arabic text that purports to be a letter from Aristotle to his student Alexander the Great on a range of topics, including physiognomy. The third of these works is Physiognomonics, also attributed to Aristotle and, as the title suggests, also about physiognomy; the influence of this Pseudo-Aristotelian work, according to Haskins, is "limited to the preface" of the Liber physiognomiae. Scot probably used the original Greek version of Physiognomonics to write his book. The historian Charles Homer Haskins argues that the Liber physiognomiae also "makes free use" of Muhammad ibn Zakariya al-Razi (also known as Rhazes) and shows "some affinities" with Trotula texts and writers of the Schola Medica Salernitana (a medical school located in the Italian town of Salerno).

Publication history and popularity

… excerpt ends here. Continue reading the full article.

Illustrations

Liber physiognomiae: The first page of a 1505 copy of the Liber Physiognomiae, written by the Scottish mathematician, philosopher, and scholar Michael Scot sometime in the early 13th century
The first page of a 1505 copy of the Liber Physiognomiae, written by the Scottish mathematician, philosopher, and scholar Michael Scot sometime in the early 13th century
Liber physiognomiae: The work was dedicated to Frederick II, Holy Roman Emperor.
The work was dedicated to Frederick II, Holy Roman Emperor.

Worked examples

Example 1 — a first encounter with Liber physiognomiae

Start with the simplest possible case. Write down what Liber physiognomiae claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Liber physiognomiae before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Liber physiognomiae ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Liber physiognomiae

In research
Liber physiognomiae appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Liber physiognomiae in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Liber physiognomiae is common in secondary-school and first-year university syllabi. It links to neighbouring topics 13th-century books in Latin, Academic works about philosophy, Physiognomy, so understanding it makes those chapters shorter.
In everyday life
Look for Liber physiognomiae outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Liber physiognomiae in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Liber physiognomiae means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Liber physiognomiae out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Liber physiognomiae in simple terms?

Liber physiognomiae (Classical Latin: [ˈliːbɛr pʰʏsɪ.ɔŋˈnoːmɪ.ae̯], Ecclesiastical Latin: [ˈliber fizi.oˈɲomi.e]; The Book of Physiognomy) is a work by the Scottish mathematician, philosopher, and scholar Michael Scot concerning physiognomy; the work is also the final book of a trilogy known as the…

Why does Liber physiognomiae matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Liber physiognomiae?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Liber physiognomiae.

Tags

  • 13th-century books in Latin
  • Academic works about philosophy
  • Physiognomy

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