都是狼何必装羊都是水何必装纯
[dōu shì láng hé bì zhuāng yáng dōu shì shuĭ hé bì zhuāng chún]
The phrase conveys a cynical view of society, where people don’t pretend to be innocent if they’re all inherently selfish and dishonest. It expresses that everyone is essentially the same in this context.