Human Nature and Conduct by John Dewey — Read

In discussing habit and impulse we have repeatedly met topics where reference to the work of thought was imperative. Explicit consideration of the place and office of intelligence in conduct can hardly begin otherwise than by gathering together these incidental references and reaffirming their significance. The stimulation of reflective imagination by impulse, its dependence upon established habits, and its effect in transforming habit and regulating impulse forms, accordingly, our first theme.

Habits are conditions of intellectual efficiency. They operate in two ways upon intellect. Obviously, they restrict its reach, they fix its boundaries. They are blinders that confine the eyes of mind to the road ahead. They prevent thought from straying away from its imminent occupation to a landscape more varied and picturesque but irrelevant to practice. Outside the scope of habits, thought works gropingly, fumbling in confused uncertainty; and yet habit made complete in routine shuts in thought so effectually that it is no longer needed or possible. The routineer's road is a ditch out of which he cannot get, whose sides enclose him, directing his course so thoroughly that he no longer thinks of his path or his destination. All habit-forming involves the beginning of an intellectual specialization which if unchecked ends in thoughtless action.