姑息養奸

gūxīyǎngjiān

to tolerate evil is to abet it

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gu1 xi1 yang3 jian1

to tolerate is to nurture an evildoer (idiom); spare the rod and spoil the child

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姑息養奸|姑息养奸 [gū xī yǎng jiān] ► to tolerate is to nurture an evildoer (idiom); spare the rod and spoil the child