Stoic News

By Dave Kelly

Friday, September 11, 2026

Happiness (Eudaimonia) Is In Our Control

 

Happiness (Eudaimonia) Is In Our Control

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


The Beginning

The argument is Sterling’s, given in Core Stoicism (International Stoic Forum, 19 September 2005), and it is set out here in derivational order. It begins where the system begins.

Th 1) Everyone wants happiness.

Th 2) If you want happiness, it would be irrational to accept incomplete or imperfect happiness if you could get complete [continual, uninterrupted] happiness.

2*) Complete happiness is possible. [To be proven below.]

Th 1 is the first premise and the whole argument answers to it. Th 2 fixes the standard: not relief, not improvement, but complete and uninterrupted happiness. 2* is posted as a placeholder rather than assumed. It carries no weight until it is discharged, and it is discharged at line 14 and again at the tie-off.


Section Two — Negative Happiness

Th 3) All human unhappiness is caused by having a desire or emotional commitment [I will henceforth say “desire” for simplicity] to some outcome, and then that outcome does not result.

4) Ergo, if you desire something which is out of your control, you will be subject to possible unhappiness. If you desire many things out of your control, the possibility of complete happiness approaches zero.

5) By 4, 2*, and Th2, desiring things out of your control is irrational [if it is possible to control your desires].

Th 6) The only things in our control are our beliefs and will, and anything entailed by our beliefs and will.

Th 7) Desires are caused by beliefs (judgments) about good and evil. [You desire what you judge to be good, and desire to avoid what you judge to be evil.]

8) Ergo, Desires are in our control.

9) By 5 and 8, desiring things out of our control is irrational.

Th 10) The only thing actually good is virtue, the only thing actually evil is vice.

11) Ergo, since virtue and vice are types of acts of will, they are in our control.

12) Ergo, things that are not in our control [externals] are never good or evil.

13) [cf 9, above] Desiring things out of our control is irrational, since it involves false judgment.

14) Ergo, if we value only virtue, we will both judge truly and be immune to all unhappiness.

Three joints carry this section. The first is the conditional clause in 5: desiring the uncontrolled is irrational if desires can be controlled. That conditional stands open until 8 discharges it, and 8 depends on Th 6 and Th 7 together. Th 6 alone would not reach desire; Th 7 is what brings desire inside the boundary Th 6 draws.

The second is Th 10, the value axiom. Without it, 4 and 5 establish only that desiring externals is risky. With it, 13 upgrades the verdict: such desire is not merely exposed but false. The irrationality is an error about how matters stand, not a miscalculation of odds.

The third is 11, which does for virtue what 8 did for desire. Virtue and vice are types of acts of will, and acts of will fall under Th 6. The good is therefore located inside the boundary, and 12 follows: what lies outside the boundary is never good or evil at all.

Line 14 closes the negative proof. Correct valuation yields true judgment and immunity to all unhappiness.


Section Three — Positive Happiness

15) Ergo, if we truly judge that virtue is good, we will desire it. 0.2

Th 16) If you desire something, and achieve it, you will get a positive feeling.

17) Ergo, if we correctly judge and correctly will, we will have appropriate positive feelings as a result.

Th 18) Some positive feelings do not result from desires, and hence do not result from judgments about value. [E.g., the taste of a good meal, the sight of a beautiful sunset, etc.]

19) Ergo, such positive feelings are not irrational or inappropriate. [Though if we desire to achieve them or desire for them to continue beyond the present, then that would involve the judgment that they are good, and hence that would be irrational.]

Th 20) The universe is, or is governed by, Nature, Providence, God or the gods. [Different Stoics approach this idea differently.]

Th 21) That which is Natural, or is governed by Providence, God, or the gods is exactly as it should be. [Zeus is just, or however you wish to express this.] {Nota bene that this produces a problem for those stoics who are strict determinists, since it would mean that even acts of vice were somehow correct, and are not actually in our control in any important sense. But I don’t think strict determinism about internal states is a core belief of Stoicism.}

Th 22) If you regard any aspect [or, better, all aspects] of the world as being exactly as it should be, you will receive appropriate positive feelings.

23) Ergo, the Stoic will be positively happy, will have positive feelings, in at least three ways: appreciation of his own virtue, physical and sensory pleasures, and the appreciation of the world as it is.

Line 14 is a pivot, not a terminus. Immunity to unhappiness is not yet happiness, and an argument that stopped there would deliver an empty life rather than a complete one.

The step from 15 to 17 is what makes positive happiness controllable rather than merely possible. Desire follows judgment by Th 7, so the agent who judges truly desires virtue. Virtue is an act of will. The object of that desire therefore lies inside the boundary of Th 6, which means the desire is always satisfiable and Th 16 always pays out. Every other desire depends for its satisfaction on conditions the agent does not hold.

Th 18 and 19 add a second channel that runs on no desire at all, and mark the exact point at which it would become irrational: not in the enjoying, but in the desiring that it be had or that it continue. Th 20 through Th 22 add a third. Sterling registers the variation among Stoics on Th 20 and notes elsewhere that denying Th 20 or Th 21 damages the positive account without touching the account of virtue or the avoidance of unhappiness. Of the three channels, the third is the one available at every waking second, since at every waking second something can be perceived as being what it is, and hence as what it should be.


Section Four — Virtue

Th 24) In order to perform an act of will, the act of will must have some content. The content is composed of the result at which one aims.

Th 25) Some things are appropriate objects at which to aim, although they are not genuinely good.

Th 26) Some such objects are things like life [our own, or others’], health, pleasure, knowledge, justice, truth-telling, etc.

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

28) Ergo, any act that aims at an [external] object of desire is not virtuous, since all desires [for externals] are irrational.

29) Ergo, virtue consists of the pursuit of appropriate objects of aim, not the pursuit of the [external] objects of our desires. Such virtuous acts will give us good feelings [by 17], and since we have no desires regarding the actual outcome, they will never produce unhappiness for us.

Th 24 and Th 25 answer the obvious objection to 13. If desiring externals is irrational, and every act of will must have content, it appears that the agent who has purged such desires can no longer act at all. Th 25 supplies the distinction that prevents the collapse: an object may be appropriate to aim at without being genuinely good. Aim is not desire.

Line 29 is the terminus. The virtuous act delivers positive feeling by 17 and cannot produce unhappiness by Th 3, because nothing was desired regarding the outcome. The two sides meet here: the same structure that secures immunity supplies the content.


The Conclusion

So now the threads of the sections can be tied together. Someone who judges truly will never be unhappy, will in fact experience continual uninterrupted appropriate positive feelings, and will always act virtuously. Anyone would agree that someone who led a life like that was happy. Judgment is in our control. Hence, not only is prefect continual happiness possible, it is actually in our control — we can actually guarantee it by simply judging correctly, and acting on those judgments.

This discharges 2*. Complete happiness was posted as possible at the outset and is delivered as controllable at the close.


The Form of the Final Step

The final inference is regularly misread, and the misreading is worth naming. Happiness is not a further item on the list of things in our control. It does not stand alongside belief and will. It enters through the second clause of Th 6: and anything entailed by our beliefs and will.

Th 6 names one region and one only. Everything else the argument claims for us — desire at 8, virtue at 11, appropriate positive feeling at 17, happiness at the tie-off — is claimed as an entailment of what occupies that region. Happiness is ours derivatively, in the way a conclusion belongs to whoever holds the premises.

This is also why the argument cannot be run in reverse. One does not secure happiness and thereby secure correct judgment. Correct judgment is the antecedent, and there is no other route to the consequent.


What the Argument Rests On

Two dependencies decide whether the argument stands, and Sterling registers both himself.

The first is Th 7, which he names as the collapse test. Deny that desires are caused by judgments about good and evil, and 8, 9, 13, 14, 28, and 29 all fall. His own statement of the consequence is the relevant one: you lose the claim that desiring externals is irrational, which means you cannot control your happiness, and with that the argument that desiring acts are not virtuous is lost as well. Th 7 is what brings desire inside Th 6’s boundary; without it the boundary encloses belief and will alone, and no route to happiness runs through it.

The second is the sense borne by “in our control” at Th 6. The tie-off does not claim that happiness correlates with inner states. It claims that we can guarantee it. A guarantee requires that correct judgment be genuinely open to the agent at the moment of judging — origination, not the location of a cause within a determined chain. Sterling marks the point inside Core Stoicism itself, in the note attached to Th 21: on strict determinism even acts of vice would be somehow correct, and would not be in our control in any important sense. He adds that he does not take strict determinism about internal states to be a core Stoic belief.

That note is the seam at which this argument and the ancient debate meet. Chrysippean compatibilism supplies a sense of “up to us” that classifies causes without securing origination, and on that sense the tie-off does not follow: what would be shown is that happiness tracks a class of inner causes we do not author. The argument as Sterling states it requires the stronger sense throughout.


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

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