What someone does is more important and revealing than what they say. Behavior is a better indicator of character and intentions than promises or statements.
This concept appears in various forms throughout history, from ancient proverbs to religious texts. The modern English version crystallized in the 17th century, with the exact phrasing becoming standard by the 19th century. Similar ideas appear in Latin as 'facta non verba' (deeds not words).
This phrase has remained remarkably consistent across cultures and centuries because it addresses a universal human experience - the gap between what people say and what they do. Interestingly, the phrase itself demonstrates its own principle: it's survived not because it sounds pretty, but because it proves useful in countless situations.
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