陰陽
這個圖叫太極。看起來是一黑一白， 其實是同一個圓的兩個運作面。圓裡面，黑的那一塊有一個白點， 白的那一塊有一個黑點，這不是裝飾，是核心教學：陰裡有陽，陽裡有陰，任何一方走到極處，會轉成另一方。
This is Taiji. It looks like a black-white duality, but it's actually two operating faces of one circle. The black half has a white seed, the white half has a black seed: that's the teaching. Yin contains yang, yang contains yin; push either to its extreme and it becomes the other.
一個常見的誤讀
常見的誤讀，是把陽當成強、好、男性、主動，把陰當成弱、差、女性、被動。這是後人加上去的價值判斷， 原本不是這個意思。陽不是比陰好，陰也不是比陽弱，它們是一個系統運作時必有的兩個模式。
A frequent mistake: reading yang as strong, good, masculine, and active, and yin as weak, bad, feminine, and passive. That's a layered-on value judgment. Originally yang is not "better than" yin, and yin is not "weaker than" yang; they are the two modes any operating system must have.
正確的讀法
陽指外顯、擴張、發散、推動、看得見。
陰指內藏、收縮、凝聚、承接、看不見。
日常的例子幾乎都是這個結構：白天與晚上、吸氣與呼氣、清醒與入睡、工作與休息、 收入與支出、推出新功能與修舊錯、表態與觀察、行動與等待。 這些都不是好與壞，是同一個生命的兩個必要面。
Yang means outward, expanding, radiating, pushing, visible.
Yin means inward, contracting, gathering, receiving, unseen.
Daily examples follow this pattern almost universally: day and night, inhale and exhale, awake and asleep, work and rest, income and expense, shipping and fixing, stating and observing, acting and waiting. None of these is good versus bad; they are necessary faces of one life.
關鍵：互相轉化
這是陰陽最重要、也最常被忽略的一條：陽走到極處會變陰，陰走到極處會變陽。 乾卦上九「亢龍有悔」正是這個道理，飛得太高，純陽到了極點，下一步必然反轉。 坤卦上六「龍戰于野」也是同樣的道理，純陰到了極點，與陽相撞。
日常的應用：拼命衝刺一段時間，那是純陽，身體會強迫你休息，那是陰。 保持沉默累積夠久，那是陰，之後會發出更大的表態，那是陽。這個轉化不是失敗，是系統的運作方式。
This is yin-yang's most important, and most overlooked, point: yang at its extreme becomes yin, and yin at its extreme becomes yang. Hexagram 1's top line, "the soaring dragon regrets," is exactly this: pure yang at its peak forces a reversal. Hexagram 2's top line, "dragons fight in the wild," is the inverse: pure yin at its extreme collides with yang.
In daily life: after sustained pushing, pure yang, the body forces rest, yin. After enough silence, yin, a stronger statement emerges, yang. This conversion isn't failure; it's how the system works.
如何用陰陽讀任一情境
站在你的情境前，問自己三個問題：
- 表面的陽是什麼？（外顯的、可見的、推動中的）
- 背後的陰是什麼？（未說出的、未看見的、正在累積的）
- 現在是哪一面在主導？會不會快要轉化？
例：一個團隊「表面的陽」是大家都很積極、業績漂亮；「背後的陰」可能是疲憊累積、有人在默默準備離開。 只看陽面會誤判；同時讀兩面才通透。
Stand in front of your situation and ask three questions:
- What's the surface yang? (Visible, expressed, in motion.)
- What's the underlying yin? (Unsaid, unseen, accumulating.)
- Which face dominates right now? Is conversion approaching?
Example: a team's surface yang might be high energy and good metrics; the underlying yin might be accumulating exhaustion and someone quietly preparing to leave. Reading only the yang misjudges; reading both is what systematic reading means.
進入卦爻：陽爻與陰爻
到了六十四卦的層面，每一卦由六條線組成，每條線只有兩種：
At the level of the 64 hexagrams, each consists of 6 lines. Each line has only two types:
不斷的實線，象徵陽的特質：剛健、推動、外顯。古代以「九」稱之。
An unbroken solid line. Marks the yang qualities: firm, driving, outward. Classically called "nine" (jiu).
中間斷開的線，象徵陰的特質：柔順、承接、內藏。古代以「六」稱之。
A line broken in the middle. Marks the yin qualities: yielding, receiving, inward. Classically called "six" (liu).
知道這兩條線後，就可以讀任一卦了。例如 乾卦（六爻全陽）和坤卦（六爻全陰），就是純陽和純陰的兩極。
Knowing these two lines, you can read any hexagram. Qian (all six lines yang) andKun (all six lines yin) are the two pure poles.
進階：陰陽不是各半
常見另一個誤解，以為陰陽講的是均衡，也就是兩邊各佔一半。《易經》要你做的， 其實是在當下的情境中找出該偏向哪一邊、偏多少。創業早期，陽多一些通常是對的； 穩定期，陰多一些通常是對的。陰陽是動態的、依時而變的，不是靜態的對稱。
Another common misconception is that yin-yang means a 50-50 balance. What the Yijing actually asks of you is to find, in the moment, which way to tilt and how far. Early in a venture, more yang is usually right; in maturity, more yin is usually right. Yin-yang is dynamic and time-bound, not a static symmetry.