取其精华，去其糟粕 (取其精華，去其糟粕) qǔ qí jīnghuá, qù qí zāopò

qǔ qí jīnghuá, qù qí zāopò phrase take the cream, discard the dross (political and educational slogan); keep what is good, discard the rest; You need to be selective when studying.
Domain: Modern Chinese 现代汉语 , Subdomain: Politics
Notes: (CC-CEDICT '取其精華，去其糟粕')