nói có sách, mách có chứng
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Claims must be backed by sources and accusations by evidence — speak with proof.
Nghĩa · Tiếng Việt
Phải có bằng chứng và nguồn gốc để hỗ trợ cho lời nói và cáo buộc
Machine-translated — suggest a fix
Literally: Speak with books; report with evidence.
How to use it
✓ Use it when
Demanding evidence in arguments, or vouching for your own claim’s sourcing.
Register: neutralConnotation: principledEra: Traditional – present
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Examples
Tôi nói có sách, mách có chứng — hợp đồng đây, chữ ký đây.I speak with books and report with proof — here is the contract, here is the signature.
Editorial example (illustrative, not a corpus attestation)
Sources & notes
This proverb is the closest thing Idiomer has to a motto.
Common questions
What does “nói có sách, mách có chứng” mean?
Claims must be backed by sources and accusations by evidence — speak with proof. Literally: Speak with books; report with evidence.
Is “nói có sách, mách có chứng” formal or informal?
nói có sách, mách có chứng is generally neutral; connotation: principled.