it takes one to know one

Meaning: (idiomatic)Expressing the same underlying character-judgment themes aspot calling the kettle blackorset a thief to catch a thief.They hired the most devious scammers they could find and paid them quite well to do somered-teamwork, becauseit takes one to know one.; (colloquial,childish)Aretortto a negative accusation, implying that the accuser shares the fault.Bob: You're an idiot!Tony:Takes one to know one!1949, Nial Kent,The Divided Path, page358:There's an unkind saying thatit takes one to know one, and it's almost true.1947,Poet Lore, page280:Anyone who appreciates Shakespeare as this author unquestionably does is another Shakespeare —it takes one to know one!1946,Gore Vidal,Williwaw,page45:“I’ve got a bad egg,” said Bervick. “I guess this was a pre-war egg.”[…]“It takes one to know one,” said the Chief, referring back to the eggs.1980,Gerald Ford, “Problems Multiply”, inA Time to Heal‎[1],New York:Berkley Books,→ISBN,→OCLC,→OL,page209:Brezhnev pretended a scowl. "Kissinger is such a scoundrel," he said.But Henry was ready for that. "It takes one to know one," he replied.For more quotations using this term, seeCitations:it takes one to know one.

Examples:

EN: I feel I know quite a bit about stuffed animals. After all, it takes one to know one.
ES: Sé bastante de animales disecados... porque voy por ese camino.
EN: Well, it takes one to know one.
ES: Se necesita un farsante para reconocer a otro.
ES: Pues, tal para cual.
ES: Bueno, uno sabe como es uno.
ES: Fingiré que nadie habló de esto.
ES: Siempre se reconoce al semejante.
EN: Well, it takes one to know one, Cyril.
ES: - Igual que tú, Cyril.
EN: Well, it takes one to know one, doesn't it, dear?
ES: Así uno tarda en saber, no es así, querido?
EN: Only you could spot that, it takes one to know one.
ES: Ya me conoce no hay quién me conozca mejor
EN: Remember, it takes one to know one.
ES: ¡Es una perdida!
EN: After all, "it takes one to know one", right?
ES: Después de todo, dime con quién andas y te diré quién eres, ¿no?
EN: I guess it takes one to know one.
ES: Debes ser así para reconocer a alguien así.
ES: Sólo una buena persona puede reconocer a otra.
EN: And believe me, it takes one to know one.
ES: Porque yo soy como tú.
EN: -Well, it takes one to know one.
ES: -¡¡Igual que tú!
EN: Well, it takes one to know one. Have you forgotten the reason why you happen to be here?
ES: Requiere uno para reconocer otro ¿Has olvidado la razon por la que estás aquí?
EN: That it takes one to know one.
ES: Que se necesita uno para conocerlo.
EN: Yeah, well, it takes one to know one.
ES: Sí, bueno, mira quien habla.
EN: Well,it takes one to know one.
ES: Bien, tarda uno en saberlo.
EN: Because after all, it takes one to know one, boy.
ES: Chico.

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