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Bon sang ne saurait mentir

Meaning: Breeding shows in the end.

Language: French

Literally: Good blood cannot lie

Category: Daily Life

Origin: An aristocratic proposition about inherited quality, still current long after the theory behind it stopped being respectable. English says blood will tell.

More idioms — Daily Life

  • Séance tenante — Then and there, without adjournment.
  • Un coup de semonce — A deliberate warning, delivered before real consequences.
  • Un train de sénateur — A slow, dignified gait.
  • Nourri dans le sérail — Brought up inside an institution and knowing all its workings.
  • Ce n'est pas une sinécure — It is not an easy job.
  • Une chasse aux sorcières — A campaign of persecution driven by suspicion rather than evidence.

More French idioms

  • Pas besoin de sortir de Saint-Cyr — It doesn't take a genius to work that out.
  • Faire table rase — To sweep everything away and start from nothing.
  • Prendre le taureau par les cornes — To tackle a difficulty head-on instead of avoiding it.
  • Les vaches maigres — A period of hardship and scarcity — the opposite of les vaches grasses.
  • Les vaches grasses — A period of plenty.
  • Aller comme un tablier à une vache — To suit someone appallingly badly.

From our tongue twisters

  • Un chasseur sachant chasser doit savoir chasser sans son chien. — The classic French 'ch' / 's' tangler.
  • Les chaussettes de l'archiduchesse sont-elles sèches, archi-sèches? — A merciless duel between 'ch' and 's'.
  • Si six scies scient six cyprès, six cents scies scient six cents cyprès. — An 's' / 'si' minefield.

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