雷風相與，立不易方
先看圖像，再讀文字。Read the image before the words.
雷風，恆
(The trigram representing) thunder and that for wind form Heng.
君子以立不易方。
The superior man, in accordance with this, stands firm, and does not change his method (of operation).
雷風相助——恆之象。君子由此體會：立身的根本方向不可改變。
(The trigram representing) thunder and that for wind form Heng. The superior man, in accordance with this, stands firm, and does not change his method (of operation).
先讀經文，再讀《彖傳》如何解釋卦辭。The received text, then the Tuan commentary on it.
恆：亨，無咎，利貞，利有攸往。
恆卦——亨通，無咎，利於守正，利於有所前往。持久之道，必伴正而能有所行動。
Heng indicates successful progress and no error (in what it denotes). But the advantage will come from being firm and correct; and movement, in any direction whatever, will be advantageous.
恆，久也。剛上而柔下，雷風相與，巽而動，剛柔皆應，恆。恆，亨，無咎，利貞，久於其道也。天地之道，恆久而不已也。利有攸往，終則有始也。日月得天而能久照，四時變化而能久成，聖人久於其道而天下化成。觀其所恆，而天地萬物之情可見矣。
恆即久。剛在上而柔在下，雷風相應，順而動，剛柔皆相應——這就是恆。恆之亨無咎利貞，是因為持久於正道。天地之道恆久而不止息。利有攸往，是因為終了之處便是新的開始。日月得天而能長照，四時變化而能長成，聖人持久於道而天下化成。觀其所恆，可見天地萬物之情。
Heng denotes long continuance. The strong (trigram) is above, and the weak below; they are (the symbols of) thunder and wind, which are in mutual communication; they have the qualities of docility and motion; their strong and weak (lines) all respond, each to the other — these things are all found in Heng.
六條線各有一句判斷。閱讀次序初→上；卦象由下而上，看左側的卦。One statement per line, read from the first line to the top. The figure is drawn bottom-up — watch the rail.
浚恆，貞凶，無攸利。
深求恆久（強求過深）——守此凶，沒有甚麼利益。剛交即求深，不合恆道。
The first SIX shows its subject deeply (desirous) of long continuance. Even with firm correctness there will be evil; there will be no advantage in any way.
浚恆之凶，始求深也。
浚恆之凶，是初始就求得太深。
悔亡。
悔消失。剛中得正應，故無悔。
The second NINE shows that occasion for repentance will disappear.
九二悔亡，能久中也。
九二悔消，是因為能持久於中道。
不恆其德，或承之羞，貞吝。
不能恆久於德——可能因此遭羞辱，守此吝。德性無常，雖正亦吝。
The third NINE shows one whose virtue is not constantly maintained. There are those who will impute this to him as a disgrace. However firm he may be, there will be ground for regret.
不恆其德，無所容也。
不能恆於德，無處容身。
田無禽。
田獵卻無收獲——做事位不當，努力而無功。
The fourth NINE shows a field where there is no game.
久非其位，安得禽也。
長久處於不當之位，怎能有所獲？
恆其德，貞，婦人吉，夫子凶。
恆守其德——對婦人來說守正吉（從一而終是婦人之德），對丈夫來說則凶（須隨時宜變通）。德之恆需配位之宜。
The fifth SIX shows one continuously maintaining the virtue indicated by it. In a wife this will be fortunate; in a husband or other man, evil.
婦人貞吉，從一而終也。夫子制義，從婦凶也。
婦人守正吉，是從一而終。夫子制義，跟從婦人之恆則凶。
振恆，凶。
振動而求恆——強欲恆久於上位之動，凶。動的本質與恆的要求相違。
The topmost SIX shows its subject exciting himself to long continuance. There will be evil.
振恆在上，大無功也。
振動求恆於上位，毫無功效。
把象套到你的情境，取一個可行的下一步。Apply the image to your situation; take one practical step.
恆·中·立不易方
Duration · centrality · firm without changing direction
恆卦最大的應用：「立不易方」——本原方向不變，方法隨時宜。卦中六爻給出兩個典型反例：初六「浚恆」（剛開始就求太深）和上六「振恆」（已盡仍強撐）。最高境是九二「能久中」（在中道上長久）。
Heng's deepest application: 'standing firm without changing direction' — the root remains, methods adapt. Two key failures: line 1 'too deep, too soon' and line 6 'forcing duration when it's gone'. Peak: line 2's 'enduring in the middle way'.
上六「振恆凶」是現代「不放手」的真實寫照——關係、職位、項目已盡，仍振力強維持，反而損自己。讀此爻最該學的是「能放下也是恆」的悖論。
Line 6 'shaking for duration is evil' — the modern 'won't let go' pattern. Relationship, role, or project is over, but you keep forcing — depleting yourself. The paradox: knowing when to release is itself a form of constancy.
王弼以為恆卦的核心在「恆於正」——恆不是死守不變，是於正道上的長久。九二「能久中」是恆之最高境，九三「不恆其德」是恆之最大失。讀此卦最該記住「久於其道」四字。
Wang Bi holds that the heart of Heng is 'constancy in what is correct' — duration is not rigid changelessness but long continuance on the right path. Line 2's 'able to endure in the center' is Heng at its highest; line 3's 'not constant in one's virtue' is its greatest failure. What most deserves remembering are the four characters 'enduring in one's way' (jiu yu qi dao 久於其道).
程子強調彖傳「終則有始也」——恆久之道不是停滯不變，是循環不息。日月恆久而不息，四時變化而能久成。學者讀此知「真正的恆是動中之恆」。
Cheng Yi stresses the Tuan's 'the end has a beginning' — the way of duration is not standing still but cycling without rest. Sun and moon endure because they never stop; the four seasons change and thereby achieve lasting completion. The student learns from this that true constancy is constancy within motion.
朱子直言：恆者，久也。卦象上震下巽，雷風相助而能持久。讀此卦學「立不易方」——根本方向不變，方法可隨時宜。最忌的是初六「浚恆」（深求過早）和上六「振恆」（強動求恆）。
Zhu Xi puts it plainly: Heng means lasting. The image is Zhen (thunder) above and Xun (wind) below — thunder and wind assisting each other, and so enduring. Read this hexagram to learn 'standing firm without changing direction': the root bearing stays fixed while methods adapt to the time. The two great traps are line 1's 'digging deep for duration' (demanding too much too early) and line 6's 'shaking for duration' (forcing constancy by agitation).
恆講怎麼久。彖傳先把誤會拆掉：「終則有始」，恆久指的是循環不息，停著不動久不了；日月能久，因為一直在走。卦裡給了兩個反面例子。初六「浚恆」，一起手就往最深處要——感情也好、事業也好，開頭太重，撐不長；上六「振恆」，到了頂上還使勁搖晃著去維持，越用力散得越快。正面的樣子是九二「能久中」，在中道上待得住。要帶走就帶「立不易方」四個字：方向不換，方法隨時可以換。
Heng is about how to last. The Tuan clears up the misunderstanding first: 'the end has a beginning' — duration means cycling without rest, and what stands still can't last; sun and moon endure because they keep moving. The hexagram gives two negative examples. Line 1, 'digging deep for duration,' reaches for the deepest level right at the start — in love or in work, an opening that heavy can't hold. Line 6, 'shaking for duration,' is still rattling away at the top trying to keep things going — the harder you shake, the faster it comes apart. The positive model is line 2, 'able to endure in the center': staying put on the middle path. If you take one thing away, take the four characters 'stand firm, don't change direction' — the direction doesn't change; the methods can change any time.
Lasting, constant, enduring — duration on the right path, not rigid changelessness.
Deep; to dig or dredge deep. Here: demanding depth at the very start.
Shame, disgrace.
Game — the birds and beasts taken in the ancient hunt.
A husband; an honorific for a man in old usage.
To shake, agitate, rouse — motion mistaken for duration.
第 31 咸與第 32 恆為一對綜卦。先有相感才有相久——這是傳統婚姻、友誼、合作的根本順序。沒有真正的相感，再多的「努力維持」也只是浮殼。
Hexagram 31 Xian and Hexagram 32 Heng form an inverse pair. Mutual feeling first, then mutual lasting — the root order of traditional marriage, friendship, and partnership. Without genuine mutual feeling, any amount of 'working to keep it going' is only a floating shell.
大象「君子以立不易方」一句，後世儒家以此立「守志」之本。「方」即根本方向，「易方」即改變根本立場。這與「應時變通」並不矛盾——可變的是方法，不可變的是方向。
The Da Xiang's 'the superior man stands firm and does not change his direction' became, for later Confucians, the foundation of 'holding one's resolve.' Fang 方 is the root bearing; to 'change fang' is to abandon one's fundamental stance. This does not conflict with 'adapting to the times' — what may change is the method; what may not change is the direction.
彖傳「利有攸往，終則有始也」一句揭示了中國循環時間觀的核心——真正的恆久不是線性的不變，是循環中的不息。日月、四時都是這個道理。
The Tuan's 'advantage in having somewhere to go: the end has a beginning' reveals the core of the Chinese cyclic view of time — true duration is not linear changelessness but ceaselessness within a cycle. Sun and moon, the four seasons, all follow this pattern.
六五「婦人吉，夫子凶」反映周代禮教——婦從一而終為德，男子須權變為德。現代讀此爻不必固守性別，但其原則仍適用：當位置要求穩定（如後勤、財務）時宜恆；當位置要求變通（如戰略、創新）時恆則害事。讀爻時看「位」與「時」之合。
Line 5's 'auspicious for a wife, ominous for a husband' reflects Zhou-era propriety — for the wife, fidelity to one man was virtue; for the man, virtue lay in weighing and adapting. A modern reading need not hold to the gendering, but the principle stands: where a position demands stability (operations, finance), constancy serves; where a position demands adaptation (strategy, innovation), constancy does harm. Read the line by the fit of position and time.
「立不易方」四字之意？方法可變還是方向可變？
What does 立不易方 (li bu yi fang) mean? Which is fixed — direction or method?
為何彖傳說「終則有始也」？這如何重新定義「恆」？
Why does the Tuan say 'end leads to beginning'? How does this redefine constancy?
用上六「振恆凶」評論一個你曾努力維持但最後須放下的事。
Use line 6 to comment on something you struggled to maintain but eventually had to release.