162-WATCH lest you believe that your warfare against error is both offensive and defensive. If you were fighting a lion, your struggle would be both offensive and defensive; but if you were fighting a sparrow, it would be wholly offensive. Error, being a false belief, has no more power to fight back than a sparrow. If however, you were walking a tight-rope, one inquisitive sparrow flying around you might present a distraction that would make it difficult for you to concentrate. The subtlety of animal magnetism is in its effort to distract thought from the task of right thinking.