Aristotle’s Prior Analytics PUBLISHED!

I am happy to announce that I have re-published Taylor’s translation of Aristotle’s Prior Analytics in a number of useful formats for students in the Classical Liberal Arts Academy. This is the most important of all studies in the classical liberal arts, and we now have a searchable, working text on the Academy website–and a printed edition to keep in hand. Ours is the only online source for Taylor’s translation. Links to the online text and printed text are posted below: I will continue to improve the formatting of the online copy, making it more and more easy to use. … Continue

What is Logic?

St. Thomas Aquinas

One can find many articles and videos in which men who identify themselves as “classical educators” or even “philosophers” provide very bad answers. If, however, they actually studied the writings of history’s masters, they would know that St. Thomas Aquinas already answered this question far more eloquently than any of them can, and if they were concerned with being good teachers, they would direct their students to the true sources rather than trying to draw them to themselves in hope of making money. Catholic students are not dependent on any living men for answers to these important questions. They have … Continue

Porphyry, Introduction, Chapter 17. Comparison of Peculiarities and Accidents

Study Porphyry's Introduction in the Classical Liberal Arts Academy

In this lesson, we complete the reading of Porphyry’s Introduction. We study the similarities and differences of peculiarities and accidents. To complete the objectives of this lesson, complete the following tasks: Study the lesson for mastery. Complete the lesson assessment. Lesson 1. It now remains to speak concerning peculiarity and accident; for we have already said in what respect peculiarity differs from species, difference and genus. 2. It is common therefore to peculiarity and inseparable accident, not to subsist without those things in which they are beheld. For as man does not subsist without risibility, so neither can an Ethiopian … Continue

Aristotle, Categories (Full Text)

Study Aristotle's Categories in the Classical Liberal Arts Academy

Contents Chapter 1. Definitions Chapter 2. Divisions Chapter 3. Rules Chapter 4. Of the Ten Categories Chapter 5. Of Substance Chapter 6. Of Quantity Chapter 7. Of Relatives Chapter 8. Of Quality Chapter 9. Of Action, Passion & Remaining Categories Chapter 10. Of Opposites Chapter 11. Of Contraries Chapter 12. Of Priority Chapter 13. On Simultaneous Things Chapter 14. Of Motion Chapter 15. On the Modes of Having Chapter 1. Definitions 1. Things are said to be Homonymous of which the name alone is common, but the definition of Substance according to the name is different. Thus, a man and … Continue

Aristotle, Categories. Chapter 8, Of Quality

Study Aristotle's Categories in the Classical Liberal Arts Academy

In this lesson, we continue our study of Aristotle’s ten Categories. Having studied Substance, Quantity and Relatives, we move on to Quality in chapter 8. Translation by Thomas Taylor 1. I denominate Quality that according to which certain things are said to be of such kinds. 4. But habit differs from disposition in this, that it is a thing more lasting and stable. And of this kind are the sciences and the virtues. For science appears to rank among the number of things which are more stable, and are with difficulty removed.   In like manner virtue, such as justice and … Continue

Porphyry, Introduction. Chapter 2

Study Porphyry's Introduction in the Classical Liberal Arts Academy

1. It seems that neither Genus nor Species is simply denominated. Of Genus 2. For a collection of certain things, subsisting in a certain respect with reference to one thing, and to each other, is called Genus; according to which signification the Genus of the Heraclidae is denominated from the habitude from one thing, I mean from Hercules, and the multitude of those who derive in a certain respect alliance from him; being Thus, denominated, according to abscission from other Genera. 3. After another manner also the principle of the Generation of everyone is again denominated Genus, whether from the … Continue

Free Book! Porphyry’s Introduction

Purchase a printed copy of Porphyry's Introduction from the CLAA Catalog.

We’re happy to provide Academy students with another newly published book: Porphyry’s Introduction to the Categories of Aristotle. This 3rd century classic is the first book studied in the Classical Liberal Arts Academy’s Classical Reasoning I course. You can download a free copy below, or purchase a printed copy from the Academy bookstore. God bless your studies,Mr. William C. Michael, HeadmasterClassical Liberal Arts