[Idiom] CAN'T JUDGE A BOOK BY ITS COVER. - Why First Impressions Aren't Always Right

Outward appearances can be deceptive.

The idiom "Can't judge a book by its cover" advises against forming an opinion about someone or something based solely on external appearances. Originating from the literal practice of judging the quality of a book by its cover design, this metaphor has broader applications in everyday life. It encourages deeper investigation and open-mindedness when encountering new people, experiences, or products. In a world where first impressions can be misleading, understanding this idiom can lead to more informed and fair judgments, enhancing personal and professional interactions.

Example Sentences

1. You can't judge a book by its cover.

   It’s important not to form an opinion based on outward appearances.

2. He learned that you can't judge a book by its cover.

   He realized the importance of looking beyond surface appearances in his judgments.

3. Despite his rough appearance, he's actually very kind, proving you can't judge a book by its cover.

   Despite a rugged exterior, his kindly nature showed that appearances can be deceptive.