The Fault That Remains

To err and not correct it—this is what deserves to be called a fault.

An error that has happened cannot be undone, but its course is not therefore closed. Correction can change what continues from it. The saying does not divide people into those who err and those who never do. It places the decisive weight on whether a known error is left in place or responsibly changed.

Confucius repeats guo twice, but the repetition turns the sentence. The first occurrence is verbal: to go wrong or commit an error. The second names the fault that deserves ethical judgment. Between them stands bu gai, not changing or correcting. The chapter therefore redirects attention from the mere fact of error to what happens after it becomes recognizable.

Gai can mean to change, amend, or reform. Correction may require stopping an action, replacing false information, repairing a consequence, or changing the pattern that produced the error. The source does not specify one procedure because different faults create different responsibilities. Traditional commentary broadens the setting by observing that no person is without errors, then stresses the importance of changing them.

Several claims in the old copy are absent from the chapter. It never introduces a junzi/xiaoren contrast, never says the first error is involuntary while the second is a free choice, and never makes public admission the defining act of correction. Recognition, capacity, evidence, and safety can all affect what responsible change requires and when it can occur.

For a modern reader, the passage can shift moral energy from identity to remedy. Calling oneself bad, seeking immediate relief, or staging a confession does not by itself correct anything. A more faithful practice identifies what the error is still doing and changes that continuation where possible. Apology and disclosure may matter, especially when others or a shared record are affected, but they serve correction rather than replace it.