I don't know anything
Chinese idiom, Pinyin is w ú B āù Nb ù sh í, which means to do everything possible. It comes from the marriage story of awakening the world.
The origin of Idioms
Chapter 95 of the marriage story of awakening the world: "beat a su elder sister hard at first, then soft at last, and then call her elder sister, her mother, and her grandmother
I don't know anything
leadership rendered ineffectual by recalcitrant subordinates - wěi dà bù diào