Of any man at all it is to err, to persist in error is of none except unthinking; for the later thoughts, as they say, are usually the wiser.

Cuiusvis hominis est errare, nullius nisi insipientis in errore perseverare; posteriores enim cogitationes, ut aiunt, sapientiores solent esse.

Original text (Latin)

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Notes from Wikiquote

Philippica XII, 5; translation of Walter C.A. Ker

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Quote text and notes from Wikiquote: Cicero (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.