取其精华，去其糟粕 取其精華，去其糟粕
qǔ qí jīng huá , qù qí zāo pò
Meaning
take the cream, discard the dross (political and educational slogan); keep what is good, discard the rest; You need to be selective when studying.; In modernizing the country, don't accept uncritically all foreign ideas.
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