Bullying the big over the small
Chinese idiom, Pinyin is Q ī D à y ā Xi ǎ o, which means to deceive the powerful and oppress the weak. From autumn in Han Palace.
[source] in the Han Palace autumn written by Ma Zhiyuan in Yuan Dynasty, the wedge: "to be a man, to be a man, to bully the big and to suppress the small, to be a man of flattery, treachery and greed."
Bullying the big over the small
never to yield an inch of ground - cùn tǔ bù ràng