The theme of consciousness is accordingly far more than the material world which constitutes its basis, though this also is one of its themes; thought is no less at home in various expressions and embroideries with which the material world can be overlaid in imagination. The material world is conceived by digging beneath experience to find its cause; it is the efficacious structure and skeleton of things. This is the subject of scientific retrospect and calculation. The forces disclosed by physical studies are of course not directed to producing a mind that might merely describe them. A force is expressed in many other ways than by being defined; it may be felt, resisted, embodied, transformed, or symbolised. Forces work; they are not, like mathematical concepts, exhausted in description. From that matter which might be describable in mechanical formulæ there issue notwithstanding all manner of forms and harmonies, visible, audible, imaginable, and passionately prized. Every phase of the ideal world emanates from the natural and loudly proclaims its origin by the interest it takes in natural existences, of which it gives a rational interpretation. Sense, art, religion, society, express nature exuberantly and in symbols long before science is added to represent, by a different abstraction, the mechanism which nature contains. FOOTNOTES: [Footnote D: Aristippus asked Socrates “whether he knew anything good, so that if he answered by naming food or drink or money or health or strength or valour or anything of that sort, he might at once show that it was sometimes an evil. Socrates, however, knew very well that if anything troubles us what we demand is its cure, and he replied in the most pertinent fashion. ‘Are you asking me,’ he said, ‘if I know anything good for a fever?’ ‘Oh, no,’ said the other. ‘Or for sore eyes?’ ‘Not that, either.’ ‘Or for hunger?’ ‘No, not for hunger.’ ‘Well, then,’ said he, ‘if you ask me whether I know a good that is good for nothing, I neither know it nor want to know it’”—Xenophon, Memorabilia, iii., 8.] CHAPTER X—THE MEASURE OF VALUES IN REFLECTION [Sidenote: Honesty in hedonism.]