Meaning of the word "a fool knows more in his own house than a wise man in another" in English

What does "a fool knows more in his own house than a wise man in another" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a fool knows more in his own house than a wise man in another

US /ə ˈfuːl noʊz ˌmɔːr ɪn hɪz oʊn ˈhaʊs ðæn ə ˈwaɪz mæn ɪn əˈnʌð.ər/
"a fool knows more in his own house than a wise man in another" picture
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