idea of reason, n.All

An Idea of reason (n.) determines ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠no object, yet is not void: it gives the understanding a canon for its extended and consistent use.