取其精华，去其糟粕

qǔ qí jīng huá , qù qí zāo pò

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.

取

qǔ

to take

其

qí

his

精

jīng

essence

华

huá

abbr. for China

，

,

去

qù

to go

其

qí

his

糟

zāo

dregs

粕

pò

grains in distilled liquor