On the other hand, a man who possesses the art of correct reading will, in studying any book, magazine, or pamphlet, instinctively and immediately perceive everything which in his opinion is worth permanently remembering, either because it is suited to his purpose or generally worth knowing. Once the knowledge he has achieved in this fashion is correctly coordinated within the somehow existing picture of this or that subject created by the imaginations it will function either as a corrective or a complement, thus enhancing either the correctness or the clarity of the picture. Then, if life suddenly sets some question before us for examination or answer, the memory, if this method of reading is observed, will immediately take the existing picture as a norm, and from it will derive all the individual items regarding these questions, assembled in the course of decades, submit them to the mind for examination and reconsideration, until the question is clarified or answered.