I am quite happy in this human ignorance mitigated by pictures, for it yields practical security and poetic beauty: what more can a sane man want? In this respect I think sometimes I am the only philosopher living: I am resigned to being a mind. I have put my hand into the hand of nature, and a thrill of sympathy has passed from her into my very heart, so that I can instinctively see all things, and see myself, from her point of view: a sympathy which emboldens me often to say to her, "Mother, tell me a story." Not the fair Sheherazad herself knew half the marvellous tales that nature spins in the brains of her children. But I must not let go her hand in my wonder, or I might be bewitched and lost in the maze of her inventions. A workman must not quarrel with his tools, nor the mind with ideas; and I have little patience with those philanthropists who hate everything human, and would reform away everything that men love or can love. Yet if we dwell too lovingly on the human quality and poetic play of ideas, we may forget that they are primarily signs. The practical intellect is always on the watch for ambient existences, in order to fight or to swallow them: and if by chance its attention is arrested at an idea, it will instinctively raise that idea to the throne of power which should be occupied only by the thing which it stands for and poetically describes. Ideas lend themselves to idolatry. There is a continual incidental deception into which we are betrayed by the fictitious and symbolical terms of our knowledge, in that we suppose these terms to form the whole essence of their objects. I think I have never failed to point out this danger of illusion, and to protest against idolatry in thought, so much more frequent and dangerous than the worship of stocks and stones; but at the same time, as such idolatry is almost inevitable, and as the fictions so deified often cover some true force or harmony in nature, I have sometimes been tempted in my heart to condone this illusion. In my youth it seemed as if a scientific philosophy was unattainable; human life, I thought, was at best a dream, and if we were not the dupes of one error, we should be the dupes of another; and whilst of course the critic must make this mental reservation in all his assents, it was perhaps too much to ask mankind to do so; so that in practice we were condemned to overlook the deceptiveness of fable, because there would be less beauty and no more truth in whatever theory might take its place. I think now that this despair of finding a scientific philosophy was premature, and that the near future may actually produce one: not that its terms will be less human and symbolical than those to which we are accustomed, but that they may hug more closely the true movement and the calculable order of nature. The truth, though it must be expressed in language, is not for that reason a form of error. No doubt the popularizers of science