Riddle: Don’t look a gift horse in the mouth. What is the contradictory proverb? The solution is below.
What does “Don’t look a gift horse in the mouth” mean in the first place? It is said to advise someone not to refuse something good that is being offered. So if you get something nice from someone, don’t suspect and just accept it. Don’t investigate the “horse’s teeth” and try to find out how old he is.
However “Beware of Greeks bearing gifts” advises not to trust enemies who bring presents to you. They could very well be playing a trick on you, couldn’t they? Check out Laocoon’s words in Trojan horse story where this proverb is adapted from.
Answer: Beware of Greeks bearing gifts.