Meaning of the word "children and fools tell the truth" in English

What does "children and fools tell the truth" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

children and fools tell the truth

US /ˈtʃɪl.drən ænd fuːlz tel ðə truːθ/
UK /ˈtʃɪl.drən ənd fuːlz tel ðə truːθ/
"children and fools tell the truth" picture

Idiom

a proverb suggesting that children and people who lack judgment or social filters are more likely to speak honestly without considering the consequences

Example:
The toddler accidentally revealed the surprise party, proving that children and fools tell the truth.
He didn't mean to offend you, but you know what they say: children and fools tell the truth.