"The conscious mind is a maelstrom of fleeting thoughts, images, sensations, feelings, conflicting desires, and doubts; barely able to confine its attention to a single clear objective for a microsecond before secondary thoughts begin to adulterate it and provoke yet further trains of mental discourse. If you do not believe this, then attempt to confine your conscious attention to the dot at the end of this sentence without involving yourself in any other form of thinking, including thinking about the dot."