This is the difference between "seeing" and "discovering": you "see" but you don't "discover"; the great "accident" that can make a person successful at once slips away under your gaze From the above, for that great "accident". How do we understand? ['Can only be "discovered", not "seen".', 'May be "seen" but not "discovered".', 'Once "discovered", success will be achieved.', 'Even if you "see" it, it may be let go.']