When an archer shoots for enjoyment, he has all his skill; when he shoots for a brass buckle, he gets nervous; when he shoots for a prize of gold, he begins to see two targets.
The eye is a menace to clear sight, the ear is a menace to subtle hearing, the mind is a menace to wisdom, every organ of the senses is a menace to its own capacity.
Human life is limited, but knowledge is limitless. To drive the limited in pursuit of the limitless is fatal; and to presume that one really knows is fatal indeed!
