huáng shǔ láng gěi jī bài nián , méi ān hǎo xīn
see 黃鼠狼給雞拜年|黄鼠狼给鸡拜年[huáng shǔ láng gěi jī bài nián]
hǎo xīn dào zuò le lǘ gān fēi
lit. to mistake good intentions for a donkey's liver and lungs (idiom)
fig. to mistake good intentions for ill intent
qiú hǎo xīn qiè
to demand the highest standards of sb (or oneself) (idiom)
to strive to achieve the best possible results
to be a perfectionist