"Little by little the central point is abandoned, they no longer approach it, and disappear in the sky, drawn by their fancy toward another point which they will leave very soon. "The thoughts of one who does not know how to gather them together and to concentrate them are like these birds. "They start from a central point, then spread out, at first without getting far from this center, but soon they lose sight of it and fly toward a totally different subject that a mental representation has just produced. "And this lasts until the moment when, in a sudden movement, the first one is conscious of this wandering tendency. "But it is often too late to bring back these wanderers to the initial idea, for, in the course of their circuits, they have brushed against a hundred others, which are confounded with the first, weaken it, and take away its exact proportions. "The great stumbling-block again is that of becoming lost in the details whose multiplicity prevents us from discerning their complete function in the act of practising deduction. "It is better, in the case where our perception finds itself assailed by the multitude of these details, to proceed by the process of elimination, in order not to become involved in useless and lazy efforts. "In this case we must act like a man who must determine the color of a material at a distance where the tiny designs stand out in a relief of white on a background of black. "Suppose that he is placed at a distance too great to perceive this detail. "What should he do to be able to give the best possible description? "He will proceed by elimination. "The material is neither red nor green; orange and violet must be set aside, as well as all the subordinate shades. "It has a dull appearance, hence, it is gray; unless.... And here mental activity comes into play and will suggest to him that gray is composed of black and white. "He will then be sure to form a judgment which will not be spoiled by falsity, if he declares that the material is a mixture of black and white. "Later, by drawing nearer, he will be able to analyze the designs and to convince himself of their respective form and color, but by deducing that the material was made up of the mixture of two colors he will have come as near as possible to the truth: "Deduction never prejudges; it is based on facts; only on things accomplished; it unfolds the teaching that we ought to obtain as a result." Again the Shogun recommends to us the union of thoughts and the continuous examination of past incidents in the practise of deductions. "If on entering a room," said he, "we are at times confused, it happens also that we correct this impression after a more attentive examination. "The gilding is of inferior quality; the materials are of cotton, the paintings ordinary, and the mattings coarse.