Stoic News

By Dave Kelly

Thursday, July 09, 2026

Core Stoicism Spelled Out — Th27: The Definition of Virtue v1.0

 

Core Stoicism Spelled Out — Th27: The Definition of Virtue v1.0

Theoretical foundations: Grant C. Sterling (Eastern Illinois University). Analysis and synthesis: Dave Kelly. Prose rendering: Claude (Anthropic). 2026.


I. The Line Verbatim

Th 27) Virtue consists of rational acts of will, vice of irrational acts of will.

Section Four: Virtue — the definition the section is named for.


II. Sterling’s Dated Elaboration

Excerpt 10 is Th27’s fullest dated elaboration, and it supplies three layers. First, the meaning of “rational”: “‘Appropriate’ means that it was rationally correct” — with the lunch example exhibiting rational correctness as an assessable property of particular choices. Second, the anatomy of the rational act of will, stated as method: identify rational goals (preferred indifferents), select rational means designed to realize them, and make both choices with reservation. Third — and most important for the theorem’s precise reading — the curly-braced passage in which Sterling marks his own position against the ancient school:

{To go beyond making appropriate choices and achieve virtue, I must make appropriate choices _and_ those choices must be connected together in a settled disposition to rationally evaluate all information that comes to me. Hence, one cannot perform _one_ virtuous action--virtuous actions come when one has reached the stage where one's inner rational development has been perfected. No-one achieves that except the Sage. I, personally, am willing to be a bit more generous and call some actions "virtuous", but most of the ancient Stoics would not.}

The passage records a deliberate choice of locus: the ancient orthodoxy reserved “virtuous” for acts flowing from the Sage’s perfected disposition; Sterling, “a bit more generous,” extends the term to particular rational acts of will — and Th27 is that generosity stated as a definition.


III. Dependency Position

Basic and load-bearing per the Atomic Foundation, with the same scoping as Th25: the pair sustains the virtue section, not the negative-happiness argument. Th27’s direct dependent is line 28 (with 13), and through 28, line 29 — both members of Sterling’s stated collapse-set for Th7, whose diagnosis arrives at 28 through line 13. Upstream, Th27 makes definitional what line 11 asserted in passing: virtue and vice are types of acts of will — the identification that placed them inside Th6’s boundary and at the intersection of the value map and the control map. Functionally, in clause (b)’s order, Th27 is the definition beneath “virtuous”: the practitioner meets line 28’s verdict first and reaches back to Th27 for what the verdict’s key term means.


IV. Commitment Grounding

C2 — Libertarian Free Will, per the ratified integration and the necessary-conditions argument: deny C2 and Th27 is emptied. The definition locates virtue and vice in acts of will, and the location does moral work only if the acts are originated. A determined output can be fortunate or unfortunate, well-formed or defective — it cannot be creditable or blameworthy, and “virtue” and “vice” are irreducibly terms of credit and blame. The agent must be the genuine first cause of the assent for the assent’s rationality to be his achievement and its irrationality his failure. C3 is engaged through the standard the definition applies: rational correctness is assessed by the faculty whose competence intuitionism asserts, and Excerpt 10’s inventory of considerations is that assessment exhibited.


V. Synthesis

Th27 completes a relocation the skeleton has been preparing since line 11: virtue is a property of acts of will — not of outcomes, not of character traits, not of track records, not of reputations. Everything the definition excludes had a claimant tradition behind it, and each exclusion earns its keep. Not outcomes: the choice is appropriate or inappropriate at the instant it is made, and the car accident, the changed mind, the closed restaurant touch nothing — otherwise virtue would hang on externals and line 11’s control claim would fail. Not consequences produced: an act aiming rationally at the right object is virtuous even when the world refuses it, and a reckless act is vicious even when the ice is safely crossed. The evaluation point is the moment of assent, because that is the only point the agent occupies.

The definition’s symmetry deserves equal weight: vice of irrational acts of will. Vice is not transgression against a rule-list, not harm caused, not social deviance — it is irrationality in the act of will itself, which per the corpus’s standing anatomy can enter at any of three points: aiming at a desired external rather than an appropriate object, pursuing an appropriate object through irrational means, or omitting reservation. The third is the subtlest: the agent who aims at the right thing, by the right route, but stakes himself on the outcome has re-smuggled a value judgment into the act, and the act is corrupted at the point of assent even though its visible conduct is impeccable. Th27 makes the moral quality of a life invisible from outside — exactly as the aim/desire distinction at Th25 promised.

Finally, the act-locus settles what the system’s promises are worth to an imperfect practitioner. On the ancient disposition view, virtue waits at the end of a perfected development no one but the Sage completes — a regulative ideal, not a present possibility. Sterling’s generosity is not a loosening of standards but a change of unit: each act of will is separately assessable, separately creditable, and separately within the agent’s control now. The prokoptōn does not approach virtue asymptotically; he performs virtuous acts today and irrational ones today, and every assent is a fresh, undamaged opportunity — the no-carryover structure the recovery audit already presupposes. The settled disposition remains the goal of training, as the curly-braced passage says; but the moral life is transacted act by act, and Th27 is the definition that makes it so.


VI. Where the Flow Goes Next

Line 28 applies the definition through line 13’s diagnosis: any act that aims at an external object of desire is not virtuous, since all desires for externals are irrational — clause (b)’s direct verdict, and the next document, brief.


Theoretical foundations: Grant C. Sterling (Eastern Illinois University). Analysis and synthesis: Dave Kelly. Prose rendering: Claude (Anthropic). 2026.

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