In late-Qing politics, the
清流党 was an idealistic faction of upright officials around
李鸿藻 and
翁同龢 who criticized the powerful and resisted foreign concessions. The label became a byword for moral incorruptibility, and survives today as a viral compliment (
一股清流, "a stream of clean water") for any celebrity or product that stands out as principled or untainted.