又想当婊子又想立牌坊
yòu​xiǎng​dāng​biǎo​zi​yòu​xiǎng​lì​pái​fāng

to want to have one's cake and eat it too

又想当婊子又想立牌坊 又想當婊子又想立牌坊 yòu​xiǎng​dāng​biǎo​zi​yòu​xiǎng​lì​pái​fāng
to want to have one's cake and eat it too
Literally "to want to be a whore but also to set up a monument to one's chastity"; refers to someone who does bad things or has selfish intentions but still wants to maintain a virtuous reputation.