2 sentences

1. 处理事务要公私分明。

   chǔ​lǐ shì​wù yào gōng​sī fēn​míng.

   One should handle affairs by clearly separating public and private interests.

   Source: Dong Chinese Dictionary

2. 每个人都应该分清公私。

   měi gè rén dōu yīng​gāi fēn​qīng gōng​sī.

   Everyone should draw a clear line between public and private interests.

   Source: Dong Chinese Dictionary