What Is Logos in Stoicism?

Question

What is logos in Stoicism, and why is it the concept on which the whole system turns? The answer is that the Stoic ethics — the doctrine of virtue, nature, and fate — is grounded in the Stoic physics, and the Stoic physics is the doctrine of the logos.

Quick Answer

Logos is the rational principle that pervades and governs the universe in Stoic philosophy. The Stoics were materialists: everything that exists is a body, including the divine. But the matter of the universe is not inert; it is pervaded by an active principle, a fiery breath (pneuma) that shapes, orders, and animates all things. This active principle is reason itself — the logos — and the Stoics identified it with God, with providence, and with fate. The universe is a living, rational whole, and everything that happens happens in accordance with the logos. Human reason is a fragment of this cosmic reason — "the mind of each of us is God," as the Stoics put it — and to live well is to live in accordance with reason, which is to live in accordance with nature.

Historical Wisdom

The doctrine of the logos is one of the deepest continuities of ancient philosophy. Its origin is Heraclitus, who taught that "all things come to be through the logos" and that the logos is the common principle that unifies the opposites. The Stoics, from the foundation of the school, claimed Heraclitus as their ancestor: Zeno of Citium wrote a work on Heraclitus, and Cleanthes developed the doctrine of the divine fire that is the Stoic version of Heraclitus's fire. In the Greek tradition, the logos had also been the principle of speech and reason — the word means both — and the Stoics united the two senses: the universe is structured like a discourse, and the rational order of things is the same order that reason grasps when it thinks truly.

Philosophical Perspectives

The Stoic doctrine of the logos has three components. The first is physical: the universe is a living, rational body. The Stoics distinguished two principles in the cosmos: the passive principle, matter, and the active principle, the logos, which pervades matter as a craftsman pervades his material. The active principle is a fiery breath, and its operations are the generation, ordering, and maintenance of all things. The cosmos is thus an organism — a rational animal, in the Stoic phrase — and its rationality is the logos.

The second is theological: the logos is God. The Stoics identified the active principle with the divine, and they developed a sophisticated account of providence: the cosmos is governed by a rational purpose, and everything that happens serves the good of the whole. This is why the Stoic acceptance of fate is not a resignation but a piety: the wise person recognizes the order of the whole, sees that it is good, and consents to it. Cleanthes's Hymn to Zeus is the religious expression of this doctrine — "the fated may lead the willing, and drag the unwilling."

The third is ethical: human reason is a fragment of the cosmic logos. The Stoic formula for the end of life is "living in agreement with nature," and the nature in question is both the nature of the human being and the nature of the universe — which are the same, because both are rational. To act virtuously is to act rationally; to act rationally is to act in accordance with the logos; and to act in accordance with the logos is to be in harmony with the whole. This is why the Stoics could say that the wise man is free even in chains: his freedom is the freedom of reason, and no external power can touch it.

Lessons From Thinkers

From Cleanthes: the logos is the object of piety — "Lead me, O Zeus, and thou, O Destiny." From Chrysippus: the logos grounds the compatibilist account of freedom — fate determines the occasion, but the character's response is its own. From Marcus Aurelius: the logos is the ground of acceptance — "All things are woven together in a single web, and those who understand the order of the whole are at peace within it." And from the modern readers of Stoicism: the doctrine of the logos is the philosophical ground of the Stoic attitude of acceptance — the conviction that the order of things is rational, and that the wise person's task is to understand it and consent to it.

Practical Application

The doctrine of the logos has practical consequences for the Stoic life. It grounds the acceptance of what is not up to us: if the universe is governed by a rational order, then what happens happens in accordance with that order, and the wise person's response is not resistance but understanding. It grounds the ideal of living according to nature: to live well is to live rationally, and the practices of Stoicism — the disciplines of desire, action, and assent — are the training of reason. And it grounds the Stoic sense of belonging: because reason is common to all human beings, the logos makes all human beings fellow citizens of a single city — the cosmopolis. In practice, the doctrine invites a double attention: attention to the order of things, and attention to the reason within oneself, which is a fragment of that order.

Quotes

Cleanthes's Hymn states the doctrine: "Zeus, ruler of nature, governing all things by law." Marcus Aurelius states the ethical consequence in the Meditations: "Living in accordance with nature is living in accordance with reason, and the two are the same." And the Stoic formula for the end of life, transmitted from Zeno of Citium, is the summary of the whole: "living in agreement with nature."

Related Questions

• What Is Stoicism? — the system in which the logos operates.
• What Is Stoic Determinism? — the doctrine of fate the logos grounds.
• What Is Stoic Cosmopolitanism? — the ethics of the common reason.
• What Is the Stoic Dichotomy of Control? — the practical discipline of the logos.