common human reason, n.All

Common human reason (n.) always ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠keeps its own interest in view; only someone who has left nature behind can browse idly among concepts for knowledge's sake.