“People in glass houses shouldn’t throw stones” warns against criticising others for faults you share yourself. Here is what it means, its origin from Chaucer onward, how to use it, and a few sayings that share its lesson in humility.
What Does “People in Glass Houses Shouldn’t Throw Stones” Mean?
The proverb means you should not criticise or attack others for faults that you have yourself, because you are just as vulnerable to the same criticism. If your own “house” is made of glass — if you have weaknesses of your own — throwing stones at others invites them to shatter yours in return. It is a caution against hypocrisy and a call to look at your own conduct before judging someone else’s.
Origin of the Proverb
The image is old. Geoffrey Chaucer used a version around 1385 in Troilus and Criseyde: “who that hath a head of glass, beware of stones in war.” George Herbert sharpened it in his 1651 collection: “Whose house is of glass, must not throw stones at another.” From these the modern proverb took shape, and it has been a standard rebuke to hypocrites ever since. It pairs naturally with the biblical warning to remove the plank from your own eye before pointing at the speck in someone else’s.
Examples in a Sentence
- “He criticises everyone’s spelling, but his own emails are a mess — people in glass houses shouldn’t throw stones.”
- “Before you call her lazy, remember people in glass houses shouldn’t throw stones.”
- “The company blamed its rivals for the very thing it does itself; people in glass houses shouldn’t throw stones.”
Similar Proverbs
- Don’t throw stones if you live in a glass house — a common shorter variant.
- The pot calling the kettle black — accusing someone of a fault you share.
- Practise what you preach — live by the standards you set for others.
- Judge not, lest ye be judged — the biblical warning against hypocritical judgement.
For more sayings about humility and judgement, see our smart thoughts and the full library of proverbs and their meanings.
Frequently Asked Questions
What does “people in glass houses shouldn’t throw stones” mean?
It means you shouldn’t criticise others for faults you have yourself, because you are just as open to the same attack. It is a warning against hypocrisy.
Where does the proverb come from?
The image goes back to Chaucer around 1385 (“who that hath a head of glass, beware of stones”), and George Herbert gave it its modern shape in 1651.
What is a similar proverb?
“The pot calling the kettle black” and “judge not, lest ye be judged” both make the same point about not condemning faults you share.