house divided, n.All

A House divided (n.) against ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠itself is common sense on first reading and, on second, the principle that all societies are founded on mimetic division and expulsion.