Maeterlinck is thus not anti-scientific or pseudo-scientific, but rather sub-scientific. He speaks of delicately felt and subtle influences and aspects of reality that lie beneath the surface of our lives, of forces and shadows that cannot be measured quantitatively or turned into philosophical categories. Or we may say that he is ultra-scientific. As science plods along, opening up the dark wilderness, he goes with the exploring party, throwing a search-light before them; flickering enough and exasperatingly uncertain at times, but sufficiently constant to light up the way, point out a path, and give us confidence that the terrors before us are not so formidable as we have feared. His influence on our time is so great because we believe that he is a seer, a man with knowledge of things hidden from our eyes. We go to him as to a spiritual clairvoyant,--to have him tell us where to find the things our souls have lost. But the modern mystic must not only recognize the scientific aspect of the age,--he must feel the social ideal that directs the spiritual energies of the time. It is the glory of Maeterlinck’s mysticism that it has not lingered in the depths of the soul, but has passed out to illuminate our thinking in regard to the social life about us. The growth of this duality of vision has been with him a long evolution. His early world was a shadowy, intangible thing. As we read the early essays, we seem to be constantly hovering on the verge of an idea, just as when we read the plays we seem to be hovering on the verge of a passion. This long brooding away from the world, however, was fruitful and momentous. The intense gaze inward trained the eye, so that when the mists cleared away and revealed the palpitating social world about him, his insight into its meaning was as much more keen and true than our own as had been his sense of the meaning of the individual soul. The light he turns outward to reveal the meaning of social progress is all the whiter for having burned so long within. In the essay on “Our Social Duty,” the clearest and the consummate expression of this new outward look, there are no contaminating fringes of vague thought; all is clear white light. With the instinct of the true radical, the poet has gone to the root of the social attitude. Our duty as members of society is to be radical, he tells us. And not only that, but an excess of radicalism is essential to the equilibrium of life. Society so habitually thinks on a plane lower than is reasonable that it behooves us to think and to hope on an even higher plane than seems to be reasonable. This is the overpoweringly urgent philosophy of radicalism. It is the beautiful courage of such words that makes them so vital an inspiration.