What Is Stoic Determinism?

Question

What is Stoic determinism, and how did the Stoics reconcile it with freedom? The question is one of the oldest in philosophy, and the Stoic answer — a form of compatibilism — has shaped every subsequent attempt to think about fate and free will.

Quick Answer

Stoic determinism is the doctrine that everything that happens does so of necessity, in accordance with the rational order of the cosmos. The Stoics were thoroughgoing determinists: the universe is a single, rational system — a body pervaded by the Logos — and every event is the necessary consequence of its causes. This order is what the Stoics called fate, and they identified it with providence: the order of the cosmos is not a blind mechanism but the expression of cosmic reason, and everything that happens serves the good of the whole. The problem is freedom: if everything is fated, in what sense are our choices free, and how can we be responsible? The Stoic answer, developed most fully by Chrysippus, is compatibilism: fate determines the circumstances in which we act, but our assent to impressions — our judgment and choice — is our own, and this self-determined assent is the ground of freedom and responsibility.

Historical Wisdom

The problem of fate and freedom runs through the whole of ancient philosophy. The Greeks inherited the figure of Fate (Moira) from myth, and the philosophers transformed it: the atomist Democritus held that everything happens by necessity, the random swerve of the Epicureans was introduced precisely to escape that necessity, and Aristotle defended a form of contingency against the determinists of his day. The Stoics were the first to embrace determinism systematically and to attempt a rigorous reconciliation with responsibility. The doctrine was developed by the founders — Zeno of Citium and Cleanthes, whose Hymn to Zeus states the willing acceptance of fate — and it was given its technical form by Chrysippus, whose treatise On Fate defended the reconciliation that has become known as compatibilism: the view that determinism is compatible with freedom and responsibility.

Philosophical Perspectives

The Stoic doctrine has three components. The first is the physical ground: the universe is a rational system, and every event is determined by its causes. The Stoics held that the causal order is complete — there are no uncaused events — and that the order is rational, because it is the expression of the Logos. This is why the Stoic determinism is not a blind mechanism: the order of the cosmos is the order of reason, and fate is providence.

The second component is the compatibilist reconciliation. Chrysippus's famous example is the cylinder and the cone: push a cylinder and it rolls; push a cone and it spins. The push is the same in both cases, but the outcomes differ, because the natures of the two bodies differ. In the same way, the same external circumstances affect different agents differently, because their characters differ. Fate determines the occasion — the push — but the response — the assent — is determined by the agent's own character, and for that response the agent is responsible. The doctrine is a compatibilism: freedom is not the absence of causation but the self-determination of the agent's response.

The third component is the ethical consequence: freedom consists in the rational acceptance of fate. The formula of Cleanthes — "the fated may lead the willing, and drag the unwilling" — states the doctrine: everyone follows fate, but the wise follow willingly, and this willingness is freedom. The Stoic practice of acceptance, the amor fati of Marcus Aurelius ("love what happens to you"), is the practical form of the doctrine: since the order of the cosmos is rational and good, the wise person consents to it, and in consenting is free.

Lessons From Thinkers

From Chrysippus: determinism does not destroy responsibility, because the agent's response is their own — the cylinder and the cone both follow the push, but each rolls according to its own nature. From Cleanthes: the willing follow fate, and the unwilling are dragged — freedom is the rational acceptance of necessity. From Marcus Aurelius: the practice is amor fati — "love what happens to you, because it is for you." And from the critics of the doctrine: the compatibilist reconciliation is delicate — if the agent's character is itself determined by prior causes, in what sense is the response free? — and the Stoic answer, that the agent is the cause of their own response, is the ancestor of every modern compatibilism.

Practical Application

Stoic determinism has a direct practical consequence: the acceptance of what is not up to us. If the order of the cosmos is rational and complete, then the things that happen to us — the loss, the setback, the injustice, the death — are part of an order we did not choose, and the wise response is not resistance but understanding. The practice of the dichotomy of control applies the doctrine: we act with full commitment on what is up to us, and we accept with equanimity what is not. The doctrine also grounds the Stoic therapy of the emotions: the anxiety, the anger, and the despair that arise from resistance to fate are cured by the recognition that the order of things is not against us but is simply the order of things. In practice, the doctrine invites a double discipline: the discipline of action, which does what can be done, and the discipline of acceptance, which receives what cannot be changed.

Quotes

Cleanthes states the doctrine in the Hymn to Zeus: "Lead me, O Zeus, and thou, O Destiny, wherever you have appointed me to go, and I will follow without hesitation." Marcus Aurelius states the practical consequence in the Meditations: "Do not be disturbed. Let things happen as they will, and let people think what they will." And the Stoic formula for the wise life, transmitted from Zeno, is the summary: "living in agreement with nature."

Related Questions

• What Is Logos in Stoicism? — the rational order that grounds determinism.
• What Is Stoic Fatalism? — the acceptance of fate in practice.
• What Is the Stoic Dichotomy of Control? — the discipline the doctrine grounds.
• What Is Free Will? — the wider problem of the self.