3950. I spoke with Aristotle when above the head, [observing] that a child could, in the space of half an hour, speak so philosophically, analytically, and logically, that Aristotle [himself] would be unable, in many volumes, to describe all the recondite philosophy, analysis, and logic [embodied in it], and yet the child knows nothing of it. In like manner the dancer may ply his arts, moving at the same time each of his limbs artificially, yet as if naturally, and applying [the necessary] respirations to each [movement], which, if they should all be explored to their source, and their mode of operation be discovered, by investigating the action of the concurrent fibers flowing from the two brains, of the motive fibers, of the muscles, of the diaphragm, of the pulmonary respiration, and of the various application of these and the other viscera, whole volumes would be required for the description, yet he knows how to dance without knowing anything of these matters. So it is with the philosophy of these things, which is of no use, except for the sake of delight. Aristotle greatly approved of this, and said that it was so, and said that it was [otherwise] as useless and futile as the dust of the earth, which was to be wholly cast away, because such [a mode of philosophizing] merely throws a heap of rubbish before the eyes, and blinds them, in case that men proceed in such an inverted order, and would fain think from an artificial method, when [yet] thought extends itself to such artificials, which seem [to proceed] from thought, instead of thoughts [proceeding] from them. These are the sentiments of Aristotle; he added, if anyone wishes to be infatuated, let him proceed in this manner.