" Since the mind occupies so high a place in the scale of our beings, and since it is the most active of our inward faculties, ever working, then what a fearful state for the soul to be blind! John Flavel said it is "like a fiery, high-mettled horse whose eyes cannot see, furiously carrying his rider upon rocks, pits and dangerous precipices. "

― Arthur W. Pink , The Total Depravity of Man (Arthur Pink Collection)