Idioms title

The Idiom Attic - a collection of hundreds of English idioms, each one explained.

The meaning of "you cant judge a book by its cover"

" You can't judge a book by its cover "
Meaning:
Decisions can't be made solely on appearance.
Example:
Raphael Nadal looked like he was straight from a street gang. I guess you can't judge a book by its cover.
Where did it originate?:
Britain, 19th century.
Where is it used?:
Hear the idiom spoken:
More idioms about:   adage  

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