Home Confucius I Ching
Text · Classical Canon (五经)

I Ching

易经 (Yìjīng) — Classic of Changes

Ancient origins with Confucian commentary  ·  c. 9th century BC onwards

"The ancient book of transformation: divination, philosophy, and the mathematics of change."

The Classic of Changes

The I Ching (易经, Yìjīng — "Classic of Changes") is one of the oldest of the Chinese classical texts, with origins reaching back to the Western Zhou dynasty (c. 1000 BC) or earlier. It began as a divination manual based on 64 hexagrams (六十四卦), each composed of six stacked broken or unbroken lines representing states of yin and yang. Over centuries it was enriched by layers of commentary, culminating in the Ten Wings (十翼, Shí Yì), traditionally attributed to Confucius.

The core of the I Ching is the idea that reality is in constant flux — change (易, yì) is the fundamental nature of existence. The 64 hexagrams represent 64 archetypal situations or moments in the flow of change, and consultation of the book was meant to reveal which moment one currently inhabited and what wisdom was appropriate to it. The system is sophisticated: it does not predict fixed outcomes but describes the dynamics of a situation and the quality of action it calls for.

Beyond divination, the I Ching became a foundational philosophical text for both Confucianism and Taoism, influencing Chinese mathematics, cosmology, medicine, and military strategy. Leibniz saw in its binary system of broken and unbroken lines a prefiguration of binary mathematics. Carl Jung translated it and used its concept of synchronicity extensively. It remains one of the most studied ancient texts in the world.

Central Ideas

Change (易)

Nothing is fixed; understanding the present moment means understanding which phase of transformation you are in. Resistance to change produces suffering; alignment with it produces flow.

Yin and Yang (阴阳)

The complementary opposites whose interplay generates all phenomena — light and dark, firm and yielding, active and receptive. Their dynamic relationship, not their static opposition, is the subject of the I Ching.

The Hexagrams

64 archetypal situations, each a map of a particular configuration of forces — from Creative Power (乾) and Receptive Earth (坤) through to Completion and After Completion.

Timing (时, shí)

The central Confucian addition: wisdom is knowing not only what is right but when it is right. The same action in a different moment can be either masterful or catastrophic.

Words of the Changes

天行健,君子以自强不息。 "Heaven moves with strength; the exemplary person therefore strives without ceasing."

From the commentary on Hexagram 1, Qian (Creative Power) — one of the most frequently cited lines in all of classical Chinese literature. The ceaseless movement of heaven is the model for the exemplary person's moral self-cultivation: never stopping, never resting on past achievement.

地势坤,君子以厚德载物。 "Earth's disposition is receptive; the exemplary person therefore sustains all things with great virtue."

From the commentary on Hexagram 2, Kun (Receptive Earth) — the complementary principle to Qian. Where heaven strives, earth sustains. The exemplary person embodies both: active self-cultivation and receptive nourishment of all things.

穷则变,变则通,通则久。 "When exhausted, change; through change, access; through access, endurance."

The I Ching's fundamental principle of transformation — when a situation reaches its extreme, it necessarily turns toward its opposite. The person who understands this does not resist the moment of exhaustion but welcomes it as the threshold of renewal.

Enduring Influence

The I Ching is the most philosophically ambitious of all the classical Chinese texts, attempting nothing less than a complete system for understanding the dynamics of change in any domain. Its influence on Chinese thought is so pervasive that it is difficult to separate from the intellectual atmosphere of classical China. In the modern world it has attracted serious attention from mathematicians, physicists, psychologists, and philosophers — Leibniz, Jung, and the physicist Niels Bohr among them — as well as the general reader, a testament to the universality of the questions it addresses about the nature of time, transformation, and human choice.

Explore Classical Wisdom in the App

Discover quotes from the I Ching and all the great Chinese classics alongside original Chinese, pinyin, and commentary — ancient wisdom for a world in constant change.

Download the App About Confucius