Even under this less extravagant form, this view of the thinking-process is rendered untenable by a multitude of familiar facts; for example, if I keep my speech-organs cleared for action, I can think no better [p. 65] than if I am sucking a pipe (some of us even find that sucking a pipe is an aid to thinking), chewing a mouthful of food, or whistling or humming a familiar tune.