kill the goose that lays the golden egg
US /kɪl ðə ɡuːs ðæt leɪz ðə ˈɡoʊldən ɛɡ/
UK /kɪl ðə ɡuːs ðæt leɪz ðə ˈɡoʊldən ɛɡ/
1.
to destroy something that is a source of wealth or profit, out of greed or impatience
:
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By cutting corners on quality, the company is killing the goose that lays the golden egg.
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Don't be greedy and kill the goose that lays the golden egg.