“The truth will out”in other languages

Same idea, different pictures

English states it as a rule; Shakespeare has it in The Merchant of Venice.

The others catch the secret coming into view. In Dutch the monkey comes out of the sleeve, nu komt de aap uit de mouw, and in Hungarian the nail pokes out of the sack, kibújik a szög a zsákból. French discovers the pot of roses, découvrir le pot aux roses, a phrase whose origin is still debated.