64.中行獨複。——出自《複·六四爻》
今譯：君子處不良氛圍中應該按中庸精神辦事，不怕孤獨而堅持追求真理。
衍言：中庸為古代的道德標準，主張待人處事不偏不倚，無過無不及。
《周易》小詞典：《複》卦震下坤上，六四以陰爻居陰位，得正。處群陰之中，獨與初九爻正應，如人持正而行，且能獨複。
He moves right in the centre, and yet returns alone to his proper path.——- from The Fourth Line, Divided, Fu
Modern interpretation: The superior man is not supposed to associate with evil persons even in an unhealthy context. He should conduct himself according to the golden mean and seek truth consistently in spite of loneliness.
Moral: Golden mean is an ancient moral principle, which advocates impartiality, reconciliation and compromise in one’s approach to people or matters.
Glossary: Fu is a hexagram taking the trigram Zhen below and that of Kun above, where the fourth line is a divided weak line right in the center. Among those represented by the other divided and weak lines, this line, however, responds to the first line, undivided. This position signifies that a man will return alone and repeat his proper course if he moves in a correct direction.