Did David Hume Split Literature from Philosophy?

Why would a philosopher who loved character sketches be the one who wrote them out of philosophy?

You’ve reached FreeAstroScience. We read the 1748 Enquiry alongside a new essay on Hume’s quarrel with character-writing, matching claim against claim page by page.

Athens, fourth century BCE. A man corners someone rushing to a meeting and asks for advice. He serenades his girlfriend with love songs while she runs a fever, then meets a friend just back from a long journey and invites him for a walk. Theophrastus called this the Man with Bad Timing, one of thirty ordinary vices collected in a short book called the Characters, and each character sketch works the same way: no explanation, just a person caught in the act of being exactly that kind of person.

How a forged preface turned character sketches into statecraft

Even among philosophers, Theophrastus was a minor figure. Aristotle gave him his name late in life. It means “divine speaker,” an upgrade from the earlier “Euphrastus,” or “good speaker.” He wrote on subjects as different as juice, metaphysics, logic, and politics. Two achievements outlast the rest, though: he is credited with inventing the science of botany, and he wrote the Characters. Put a rough number on it: if Theophrastus wrote around 320 BCE, Hume’s Enquiry arrived some twenty-two centuries later, and the character sketch survived every one of those centuries until Hume.

Classicists have never agreed on why Theophrastus wrote it. Ebner-Landy lays out three competing theories: the book as rhetoric homework for young lawyers learning to mock a defendant in court, the book as a discarded appendix to the Poetics separating comic types from Aristotle’s tragic ones, or the book as ethics, a set of bad qualities to recognize and avoid in company. Nobody settled the question in antiquity either. An anonymous Roman writer solved it by cheating. He wrote a preface in Theophrastus’s name, claiming the Characters classified people the way its author had once classified plants, and doubled as a guide to whom you should frequent and whom you should avoid. Renaissance readers embraced the forgery, and it launched a moral reading of the Characters that stuck for centuries.

After the first Latin translation in the 1430s, humanist after humanist queued up to explain what the book was good for. Lapo da Castiglionchio the Younger, the translator, told a Papal chamberlain the book would teach him to “control” other people. Viennese scholar Johannes Gremper called it a deep well of practical experience, useful to an ambassador. Willibald Pirckheimer went furthest: writing after the German Peasants’ War of 1525, he argued that Theophrastus’s vice-sketches could quell a revolting population, because moral instruction by bad example works, and works best when it is well written.

Casaubon’s third way, and its two heirs

By the end of the sixteenth century, the French philologist Isaac Casaubon set out to explain why the Characters had this pull. Casaubon read Greek, Aramaic, Syriac, Arabic, and Hebrew. He held professorships at Geneva and Montpellier, worked the royal library in Paris, then moved to the English court. For more than twenty years he translated Theophrastus into Latin, producing three editions.

Casaubon’s answer: character-writing was a third method of teaching morals, alongside reasoned argument and general advice, and the most elegant of the three. A reader doesn’t absorb an argument or a piece of advice from a character sketch. They see a quality embodied in a particular person’s daily habits, which Casaubon called an “intermediate genre between the writings of philosophers and poets.” Vivid like poetry, instructive like philosophy.

That third way had two notable heirs. In 1608 the English bishop Joseph Hall Christianized it, swapping in the Humble Man and the Faithful Man alongside new vices like Envy and Covetousness, and following Casaubon in treating “Charactery” as one of three ways Greek moral philosophers taught virtue. Roughly eighty years later, Jean de La Bruyère did the same for French readers, translating Theophrastus and adding his own sketches of tax collectors, lawyers, the rich, and the poor. His rich man “blows hard enough for all to hear him” when he uses his handkerchief, while the poor man “gets into a corner to sneeze.” La Bruyère asked what probability there was of pleasing every reader’s taste “by one single Tract of Morality,” and answered his own question by writing for the reader who learns best by watching a type in action.

The run-up to 1748, in order:

1. Fourth century BCE — Theophrastus writes the Characters, thirty vices with no explanation offered.
2. 1430s — the first Latin translation launches a moral reading of the book.
3. 1525 — Pirckheimer cites the Peasants’ War to argue the Characters can quiet a population.
4. 1608 — Joseph Hall Christianizes the genre in English.
5. Circa 1688 — La Bruyère’s bestselling French adaptation adds tax collectors, lawyers, the rich, and the poor.
6. 1743 and 1748 — new Greek and Latin editions of the Characters appear in Glasgow, the years bracketing Hume’s Enquiry.
7. 1748 — Hume’s Enquiry Concerning Human Understanding splits moral philosophy in two.
8. 1751 — the dialogue attached to the Enquiry Concerning the Principles of Morals presses the split further.

What Hume actually wrote in 1748

More than fifty years after La Bruyère, having read him, Hume disqualified character-writing as a third way of doing moral philosophy. In 1748, in An Enquiry Concerning Human Understanding, he split the field into two methods only: the “easy and obvious” and the “accurate and abstract.”

The easy-and-obvious philosopher paints virtue in “the most amiable Colours,” borrows from poetry and eloquence, selects striking instances from common life, and sets “opposite Characters in a proper Contrast.” That is the character-sketch playbook, and Hume knew it from the inside. Greek and Latin editions of the Characters were freshly published in Glasgow in 1743 and 1748, and he owned a copy of Casaubon’s edition himself. When Hume names names, the split becomes explicit: “The Fame of Cicero flourishes at present,” he writes, “but that of Aristotle is utterly decay’d. La Bruyere passes the Seas, and still encreases in Renown: But the Glory of Malebranche is confin’d to his own Nation and to his own Age. And Addison, perhaps, will be read with Pleasure, when Locke shall be entirely forgotten.” Cicero, La Bruyère, and Addison belong to the easy-and-obvious camp; Aristotle, Malebranche, and Locke belong to the accurate-and-abstract one. It echoes a line we’ve walked before, the one separating what physics can measure from what only metaphysics can ask, in our piece on where that boundary sits.

Understanding, not manners, is what the accurate-and-abstract philosopher wants instead, built by moving from particular instances toward the “original Principles, by which, in every Science, all human Curiosity must be bounded.” Neither camp satisfies Hume alone: stylists don’t get to the bottom of things, and metaphysicians get abstruse. “Happy,” he writes, “if we can unite the Boundaries of the different Species of Philosophy, by reconciling profound Enquiry, with Clearness, and Truth with Novelty.”

Table 1 — Hume’s two methods of moral philosophy, per his 1748 Enquiry (Ebner-Landy, Aeon, 2025)

Did Hume blend the two methods, or bury one of them?

There’s one catch. The site’s earlier account of this argument, published in 2025, read Hume’s anatomy-and-painter metaphor as an attempt to reconcile the two philosophies, taking clarity from one side and rigor from the other. Ebner-Landy’s essay argues something sharper. Is that really blending, or is it burial with better manners?

Look at what the metaphor actually licenses. Hume compares the accurate-and-abstract philosopher’s “inward Search” to the anatomy a painter needs beneath the skin: necessary, but not the point of the painting. Once you’ve absorbed that structure, you write with “all the rhetorical paint” available, bounded by experience. Character sketches don’t survive this arrangement as a method in their own right. They survive as raw material for a synthesis that Hume, not Cicero or La Bruyère, controls. His own essay “Of National Characters,” written the same year, proves it: he doesn’t sketch a Frenchman or an Italian in the Theophrastan style. He interrogates the principle behind national character instead, hunting causes rather than types. Three years later, in the dialogue attached to his Enquiry Concerning the Principles of Morals, a speaker worried about the “Uncertainty of all these Judgments concerning Characters” looks for “a Standard” by “examining the first Principles.” That is not what a character-sketch writer does. It is what an anatomist does to a genre that used to stand on its own.

Ebner-Landy‘s title makes the same point more bluntly than we did the first time around: Hume distrusted literature, and he worked to discredit character sketches as legitimate philosophy. We were wrong to soften that into a merger.

Two rivers, one mountain

Hume reached for a geographic image to describe what happens next. “The Rhine flows North, the Rhone South,” he writes, “yet both spring from the same Mountain, and are also actuated, in their opposite Directions, by the same Principle of Gravity: The different Inclinations of the Ground, on which they run, cause all the Difference of their Courses.”

One literary historian, quoted in Ebner-Landy’s essay, calls Hume’s Enquiry a book written “at a transitional moment in the history of the concept of literature itself.” After 1748, literature absorbed the painterly kind of philosophy Hume had just demoted: the typical figures, the lively description, the opposite characters in contrast. Some Theophrastan types went straight into novels. Others arrived by a longer route, as novelists explored moral qualities such as pride and prejudice, or sense and sensibility, through characters placed in a narrative rather than a treatise. Philosophy, meanwhile, became anatomy. Walk into a philosophy seminar today and you will read Locke. You will not read Addison. It’s the same demarcation instinct behind our look at where physics ends and metaphysics begins, just aimed at moral philosophy instead of cosmology.

What the essay doesn’t settle

Ebner-Landy doesn’t say which of the three ancient theories about the Characters is correct: rhetoric exercise, discarded appendix to the Poetics, or ethics guide. Her essay traces how the moral reading won the argument in practice, not why Theophrastus wrote the book in the first place. We’re skipping that dispute here too. It doesn’t change what Hume did in 1748, and picking a side on Theophrastus’s original intentions is a job for classicists, not for us.

The essay is also quiet on exact timing. It tells us today’s philosophy syllabi favor Locke over Addison, without dating when that swap actually happened in university curricula. Call the gap what it is: we don’t know if this took one generation or three.

What we keep, and what we let go

Two things from this history still hold up. First, some concepts need a face before they make sense. You don’t fully grasp “absentmindedness” from a definition alone; picture the man who falls asleep at the theatre and wakes up alone, and the word finally lands. Ebner-Landy’s essay pushes this toward ordinary literary figures nobody names as protagonists, the host, the snob, the coachman, the aunt, rather than Antigone or Anna Karenina, whose inner lives already get plenty of philosophical attention.

Second, naming a moral type was always meant as an invitation to change, not a life sentence. The Man with Bad Timing was sketched to deter bad timing. Calling someone a mansplainer today works the same way. It names a habit in the hope that the habit stops, which is exactly what keeps a Theophrastan sketch from curdling into a stereotype. A stereotype fixes a trait to a person’s religion, ethnicity, or race and leaves no room to move. Done honestly, a character sketch names a habit and leaves the door open instead. It’s the same tension Plato names as métron against métrion, which we traced recently in our piece on AI and the shrinking space for human judgment.

None of that undoes what Hume did to the genre in 1748. It just means the genre he demoted kept working anyway, on the far bank of the river he split.

FreeAstroScience.com traces where disciplines draw their lines, and this is one more boundary worth watching. Read the source yourself before you take our word for either verdict.

Sources

1. Ebner-Landy, K. (2025). “How David Hume split literature from philosophy.” Aeon Essays, edited by Sam Haselby. Published 11 September 2025. https://aeon.co/essays/how-david-hume-split-literature-from-philosophy — primary and sole source for this article; closed-source mode.
2. Hume, D. An Enquiry Concerning Human Understanding (1748), quoted in Ebner-Landy (2025).
3. Hume, D. An Enquiry Concerning the Principles of Morals (1751), quoted in Ebner-Landy (2025).
4. La Bruyère, J. de. Characters, translation quoted in Ebner-Landy (2025).
5. Casaubon, I. Edition of Theophrastus’s Characters, quoted in Ebner-Landy (2025).