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Musings on Extrinsic Formal Causality and Practical Signs

This is not quite how I envisioned this first blog post turning out… Originally, I had considered writing something on the issue of the political common good, focusing on the plurality of common goods in relation to the political exercise of social justice in its original and true sense (namely, the right ordering of various goods within a social whole).  Oh well… That will be my next posting.

I am in the midst of working on a monograph devoted to a topic dear to my heart, concerned with (broadly speaking) the being of culture, exposited in line with a rigorous Thomistic metaphysic.  I am at a point of writing where I need to discuss the topic of extrinsic formal causality.  Therefore, I thought it might be helpful to write a blog post that teases out some of the ideas that will eventually enter into that particular chapter of my work.

The Platonic and Neo-Platonic universe is one that is dominated by the notion of extrinsic formal causality.  According to a kind of somewhat pedestrian, “kitchen table” Platonism, which philosophy professors often teach their undergraduate students, the world would be a kind of imitation of the transcend realm of the Forms or Ideas.  However, as any astute reader of Plato himself knows, many seeds for Aristotle’s own thought are found all throughout the written expression of the master’s thought, from which he drank for so many years.  Thus, in the Timaeus, we find the need to posit (by way of myth) a “receptacle” into which the form would be reflected (thus inserting material causality into the Platonic metaphysic), as well as the famous “Craftsman” (or “Demiurge”), who looks at the Forms and places them into the matter-receptacle(s), thereby making mutable copies of the immutable ideal realities (thus inserting efficient causality into the metaphysic).  Although Neo-Platonism would more clearly articulate the role of a kind of cosmic teleology, with all things going forth from the One and magnetized to return thereto (to the degree that this is possible), Plato’s conception of the Idea of the Good no doubt is the seed for such reflection on universal metaphysical gravitation.  (Think of how powerfully such teleology is expressed in Aristotle’s own account of the particular causality exercised by the First Cause when he discusses this not in the Physics but, rather, in the Metaphysics.)

But, with all of that being said, the most powerful of causes that operates on the Platonic and Neo-Platonic mind is extrinsic formal causality: the “really real” is to be found in the Ideas, with everything else being a copy thereof.  Thus, the world is full of copies and images, derivative realities whose intelligibility points to an external source upon whose model they were fashioned.  The Christian mind would readily develop this Platonic insight into the philosophical-theological metaphysics of the “Divine Ideas.”

It is, however, all too tempting for Christian philosophers to rush to the heights like this.  It comes from a laudable and pious sentiment.  But, the bright light of theological concern can tend to bleach out the importance of more quotidian realities.  Thus, among scholastics, one will most often speak of the “artistic idea” by which an artist fashions his or her work.  But such discussions are a kind of quick scaffolding for the sake of accomplishing the real construction: just enough elaboration so that one can then move on to the “truly important topic” concerning the Divine Ideas, the artistic exemplars of all created beings.

However, let us consider phenomena that are far more down to earth.  As I sit here typing, I see all sorts of things in my office.  A mug of coffee sits at my right.  Pens sit next to papers.  Slightly behind me, alongside the wall, there is a piano with a music book open, instructing me on the harmonization of a Bach chorale.

The last example is instructive (and, of course, purposely chosen).  Note the verb in the final clause: the book is instructing me.  Obviously, the sense of this verb is not the same as when it is used in its proper sense, referring to the activity of a teacher in relation to his or her students.  The act of instruction involves a kind of efficient causality.  But, for all that, is the transfer a mere metaphorical rhapsody?  No, for the most essential aspect of teaching is the act of presenting ideas before the mind of another, the “presentation of the object” to be known.  And this is something that the music text does to the person who has eyes to see.

Let us presume that I have never seen this harmonization of the “Darmstadt” melody before.  As someone who can somewhat plunk away at a piano, I have the agentive capacity to interpret music so as to then “transfer” its “message” to the tips of my fingers.  But, I cannot so transfer the “Darmstadt” melody until I know it.  In other words, my playing this melody depends, for its very being, upon the details intelligibly arranged on the paper.  And what is dependence in being?  It is a relationship of effect to cause.  My performance of this melody today must be “formed” by the message of the music pages.  My agency receives its form from outside of me—it is influenced by a causality that is, at once, extrinsic and formal.

In its merely “natural” being, the book of chorales is of use for starting a bonfire.  If civilization were to collapse, and if all modern Western music notation were to be forgotten, these properties would remain.  But, to the eyes of cognitional human agents, with a certain cultural and habituated ability to actualize the intelligibility that has been placed in these signs, the book is a window on the soul of a particular kind of music.  It pulls the musician into its orbit and expresses an intelligibility that is there in the paper—but in alio modo esse, according to another manner of existence.  It provides the “measure”, the right proportioning (at least in general terms), for my music playing.

And if one has eyes to see, one will realize that even blank paper itself also exercises this sort of causality.  In a literate culture in which writing upon paper is a possibility, a blank piece of paper is seen for the artifact that it is.  It is a practical sign of a kind of activity.  When viewed within the particular cultural context of sign interpretation, it is a kind of invitation to activity, it specifies a kind of activity: qua paper, this is something to be written on.  Sure, it can specify other activities too: make paper airplane from this, or cut out shapes from this, etc.  But the point remains, insofar as it brings into our minds the possibility of a practical activity—that is, insofar as this artifact is part of the relation-complex that leads my mind beyond the paper to a given kind of activity—the paper, precisely in this relational structure, becomes a sign, a practical sign.

We are surrounded by practical signs directing our action—they are everywhere.  They perfuse the world.  And although this kind of causality is exercised most clearly in human agency, where choice intervenes so as to constitute new forms of intelligibility, there is a real sense in which such extrinsic formal causality perfuses lower forms of activity as well.  When several trees interact with their environment so as to “communicate” with each other through their root systems, the various fungi and elements that take part in these processes have intelligibility as part of a kind of organic communication system only if one takes into consideration the life pattern of the trees in question.  In other words, the intelligibility of this system of activity, precisely as a unified system of activity, derives its intelligibility from the particular organic capacities of the plant life in question.  Even here, there is a kind of “extrinsic information” which gives an intelligibility that is not merely present in the uncoordinated activity of the parts of this now-active plant communication system.

But, I have gone on too long already.  I merely wanted to tease about on this topic to get a feeling for where the mind might go when writing on it.  Hopefully, though, this musing begins to get you thinking.  You’ll never look at the world the same again: the edge of the road is a practical sign (exercising extrinsic formal causality) telling you not to drive over it; the dashes between lanes indicate to you a kind of legal driving pattern; a driveway is an invitation to drive there and not on a lawn; a door handle is an invitation to turn and open a door; and in just the right context, a steep and open snowy hill begs you to ski down it.             

Extrinsic formal causality is everywhere, for the world is perfused with signs, both speculative and practical.  Let him who has eyes to see see.

IO2S Deely – Augustine: Instituting the Given Sign

The Latin Age of philosophy was one of the most productive, systematic, and insightful times of intellectual inquiry in human history—despite the oft-given reductive and willfully-ignorant treatment that labels all between the fall of Rome and the rise of the Renaissance as the “Dark Ages”—for which the first major figure was Augustine of Hippo. Most well-known for his Confessions and City of God, works both of a deeply spiritual yet profoundly philosophical nature, Augustine was a contributor the tradition in many other ways, including but not limited to his definition of the sign and distinction of signs into natural and given.

On 15 January 2022 at 11am ET (4pm UTC – check times around the world here), Dr. Brian Kemple (Lyceum Institute) will give a lecture on Augustine’s contribution as well as his errors, and discuss what Augustine’s work provides us both in its historical significance and its overall importance for an understanding of semiotics. Dr. Remo Gramigna will provide commentary. This presentation is open to the public and can be watched below (live as well as recorded).

2022 International Open Seminar on Semiotics (IO2S) | Website

This collaborative international open scientific initiative and celebration is jointly organized by the Institute for Philosophical Studies of the Faculty of Arts and Humanities of the University of Coimbra, the Lyceum Institute, the Deely Project, Saint Vincent College, the Iranian Society for Phenomenology at the Iranian Political Science Association, the International Association for Semiotics of Space and Time, the Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences, the Semiotic Society of America, the American Maritain Association, the International Association for Semiotic Studies, the International Society for Biosemiotic Studies and the Mansarda Acesa with the support of the FCT – Foundation for Science and Technology, I.P., of the Ministry of Science, Technology and Higher Education of the Government of Portugal under the UID/FIL/00010/2020 project.

Winter Seminars – Reminder

Our Winter Seminars start tomorrow (first discussion sessions 1/15)! There’s still plenty of time to sign up, but readings are already available and discussion threads will begin on 1/8.


As you might surmise, this is a course for those who have had no (or have not had in a long time) formal philosophical education. It is a bit different than the typical introductory course. Here, you will find no histories or surveys, no trite clichés about questioning authority, no attempts at “dumbing down” a complex topic to make it “accessible”. Rather, you will find the essential challenge of philosophy itself: learning the habit of conscious reflection on our own conceptions. We will do this through a series of lectures, curated readings, and discussion sessions—with part of the seminar focused on Plato, as a master of the means to philosophical reflection—and a community of like-minded inquirers.


This is a much more advanced seminar, presuming the participant already has some familiarity with semiotics and possibly with scholastic realism as well. Here, we are asking the question of culture explicitly from the perspective of semiotics: how is culture constituted, mediated, diminished, and otherwise altered by the action of signs? How does culture, conversely, shape the “grammar” of signs by which we ourselves think? These questions are, I think, important especially today, in which we are experiencing a dramatic shift in the constitution of culture as affected by the digital paradigm of daily experience. If we are to change culture for the better, we must understand how we participate in it—and thus we must understand the signs through which culture affects human life, and, conversely, how human beings may affect culture through the use of signs.

[2022 Winter] Introduction to Philosophical Thinking

What is philosophy?  Is it something we study—as subject, like biology or literature?  Is it something each of us has, individually—as in, “my personal philosophy”?  Is it a relic of history?  An intellectual curiosity?  A means to impress at cocktail parties and on social media?

Or perhaps—as this seminar will attempt to demonstrate—philosophy is a way of thinking relatively easy to identify but very difficult to practice.  Mere description of the practice does not suffice for understanding it; one must, rather, engage in the practice itself.  This engagement requires discipline of the mind and the consistent willingness to pursue philosophy not merely as a hobby, but as a habit.  For those who have the will, this seminar will provide the means: namely through a schedule of carefully-selected readings and persistent dialogue—both in the seminar discussion sessions and through the Lyceum Institute platform.  This incipient practice of philosophy will not make you a philosopher; but it will engender in those who seize it the germ of a true philosophical habit.

In this seminar, lasting 8 weeks (with a break at the halfway point–see here for more information on all Lyceum Institute seminars), we will investigate what it means to think philosophically and develop this practice into a habit. The instructor for this seminar is Brian Kemple, PhD, Executive Director of the Lyceum Institute. You can read more about Dr. Kemple here.

January 15–12 March
Saturdays, 1:15-2:15pm ET /
6:15-7:15pm UTC

Lyceum Institute digital platform run on Microsoft Teams

Lyceum Institute seminar costs are structured on a principle of financial subsidiarity. There are three payment levels, with discounts for those who are professors and clergy (whose continuing education is not sufficiently prioritized by their institutions) and for students (who are already taxed excessively by the educational system). However, if you are part of the working world and wish to take a seminar but cannot afford the “standard” rate, it is acceptable to sign up at one of these discounted prices. The idea is: pay what you can. Those who can pay more, should, so that those who cannot pay as much, need not. Lyceum Institute members receive a further discount (see here for details).

Registration is closed.