Meaning of the word "a candle loses nothing by lighting another candle" in English

What does "a candle loses nothing by lighting another candle" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a candle loses nothing by lighting another candle

US /ə ˈkændəl ˈluzəz ˈnʌθɪŋ baɪ ˈlaɪtɪŋ əˈnʌðər ˈkændəl/
UK /ə ˈkændəl ˈluːzɪz ˈnʌθɪŋ baɪ ˈlaɪtɪŋ əˈnʌðə ˈkændəl/
"a candle loses nothing by lighting another candle" picture

Idiom

helping others or sharing knowledge does not diminish one's own resources or value

Example:
I'm happy to mentor you; after all, a candle loses nothing by lighting another candle.
Sharing your ideas won't make you less successful; remember that a candle loses nothing by lighting another candle.