breeding will tell

breeding will tell

proverb One's true nature will be revealed. If you're skeptical of someone's motives, just give it time—breeding will tell.
See also: breeding, tell, will
Farlex Dictionary of Idioms.

Breeding will tell.

Prov. one's character or lack of it will become known. From the beginning, he appeared to be courteous, and now he clearly has proven himself to be so. Breeding will tell.
See also: breeding, tell, will
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • tell the truth and shame the devil
  • tell
  • tell (one) about (someone or something)
  • tell about
  • I can tell you
  • tell one to face
  • do tell
  • phone up
  • breeding ground
  • kiss and tell