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Cosmology · China

The I Ching

易經

Anonymous, Zhou dynasty · c. 9th century BCE

The oldest of the classics: a philosophy of flux.

A system of 64 hexagrams mapping how every situation changes into the next.

The essence

What it is really about

Each hexagram is six lines, broken or unbroken, that together describe a situation and its tendency to change. Consulting the I Ching is less about predicting the future than about seeing the present clearly as a moment in motion.

Historical context

Where it came from

Its core goes back to Western Zhou divination around 1000 to 750 BCE. The Ten Wings commentaries, later attributed to Confucius, turned it into philosophy. Leibniz saw binary arithmetic in its broken and unbroken lines.

Key ideas

The concepts to carry with you

  • Yin and yang

    Complementary forces whose balance is always shifting.

  • Trigram

    Three lines; eight trigrams for heaven, earth, thunder, water, mountain, wind, fire, and lake.

  • Change

    The only constant. Every line, pushed far enough, becomes its opposite.

In the deep dive

  • Yin, yang, and the logic of constant change
  • How an ancient oracle became a book of wisdom

Interactive · the three-coin method

Cast a hexagram

Three coins, six tosses. Sums of six and nine are old lines that change into their opposites, giving a second hexagram that shows where the situation is heading.

Hold a question in mind. Toss three coins six times; each toss builds one line, from the bottom up.

開元通寶開元通寶開元通寶

Heads count three, tails two.

易

Sixty-four situations, each changing into the next.

The I Ching was read less as fortune-telling than as a mirror for seeing the present clearly, as a moment in motion.

Living translations

Read it in the original

Each passage is cited and credited. Classical lines open character by character: the reading, the sense, and what is hiding inside a single character. Paraphrases are marked where the best translations are still under copyright.

  1. 01

    Hexagram 1, Qian, the image

    Translation
    Reading mode

    ,。

    Hover, focus, or tap a character for its reading and sense.

    Heaven, in its motion, gives the idea of strength. The superior man, in accordance with this, nerves himself to ceaseless activity.
    Translated by James Legge (1882)perseverancestrengtheffortdiscipline
  2. 02

    Hexagram 2, Kun, the image

    Translation
    Reading mode

    ,。

    Hover, focus, or tap a character for its reading and sense.

    The capacity and sustaining power of the earth is what is denoted by Kun. The superior man, in accordance with this, with his large virtue supports men and things.
    Translated by James Legge (1882)receptivitysupportvirtuepatience
  3. 03

    Great Appendix, II.2

    Translation
    Reading mode

    ,,。

    Hover, focus, or tap a character for its reading and sense.

    When a series of changes has run all its course, another change ensues. When it obtains free course, it will continue long.
    Translated by James Legge (1882)changetransitionfailurerenewal
  4. 04

    Great Appendix, I.11

    Translation
    Reading mode

    ,,,。

    Hover, focus, or tap a character for its reading and sense.

    In the system of the Yi there is the Grand Terminus, which produced the two elementary Forms. Those two Forms produced the Four emblematic Symbols, which again produced the eight Trigrams.
    Translated by James Legge (1882)yin yangcosmologyoriginsstructure

A modern translation

Why it still matters

A three-thousand-year-old reminder that no situation is permanent, and that the right move depends on where you are in the cycle.

Map it onto your own decision