IdiomDaily LifeFrench

Bon sang ne saurait mentir

Meaning: Breeding shows in the end.

Literally: Good blood cannot lie

Example: “Fille et petite-fille de chefs, elle a ouvert son restaurant à vingt ans : bon sang ne saurait mentir.” — Daughter and granddaughter of chefs, she opened her restaurant at twenty: blood will tell.

English equivalent: Blood will tell

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

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