Virtue as the sole good

In brief

Stoics argue that virtue — excellence of judgement and character — is the only thing that makes a life good in the fullest ethical sense.[1] Vice is the only evil in that sense.[1] This is a claim about what constitutes flourishing, not a denial that food, health, friendship or safety can be valuable in ordinary deliberation.[1] The Stoic account separates moral good from things that are naturally worth choosing.[1]

What the texts say

A person can be healthy and act unjustly, or become ill while acting with courage and care.[1] If health were itself the good, illness would make the person’s life morally bad; if wealth were the good, poverty would make virtue impossible.[1] Stoic arguments reject those conclusions.[1] Health and resources may be preferred because they normally support human functions, but their presence does not make someone virtuous.[1] Virtue depends on how a person judges and acts with whatever circumstances are available.[1]

The claim has practical force: it makes moral character less hostage to luck, office or reputation.[4] It also imposes a demanding standard.[4] Stoics do not define virtue as good intentions alone; it involves knowledge and consistency in choosing.[4] The surviving Roman writers often express the doctrine through examples and exercises rather than a single formal proof.[4] Marcus, for example, repeatedly reminds himself that reputation and bodily fortune are not the measure of a person’s character.[4]

How it has been read

The position is sometimes mistaken for the claim that external goods are worthless.[1] The category of preferred indifferents exists precisely because Stoic deliberation still has to compare health with illness or adequate resources with deprivation.[1] “Indifferent” means that a thing does not by itself determine virtue or vice; it does not mean that all outcomes are identical or that no ordinary choice matters.[1]

Reading it now

The distinction can prevent success from being mistaken for goodness and failure from being mistaken for moral failure. But it should not erase material conditions or the duties people have to protect one another. A theory of the good life can say that wealth is not virtue while still recognising that poverty, violence and illness affect what people can do.

Further reading

See the Stanford Encyclopedia’s account of Stoic virtue and indifferents.

Sources

[1] https://plato.stanford.edu/entries/stoicism — Stoicism — Stanford Encyclopedia of Philosophy [4] https://plato.stanford.edu/entries/marcus-aurelius — Marcus Aurelius — Stanford Encyclopedia of Philosophy