you can't judge a book by its cover in Swedish
you can't judge a book by its cover in Swedish
man ska inte döma boken efter omslaget
(idiomatic, metaphorical) It is not possible to make reliable judgments about things or people by considering external appearances alone.
man skall inte döma hunden efter håren
(idiomatic, metaphorical) It is not possible to make reliable judgments about things or people by considering external appearances alone.