A recollection came back to me. It was of a hot upland meadow in Tyrol, where among acres of flowers and beside a leaping stream I was breakfasting after a morning spent in climbing the white crags. I had picked up a German on the way, a small man of the Professor class, who did me the honour to share my sandwiches. He conversed fluently, but quaintly in English, and he was, I remember, a Nietzschean, and a hot rebel against the established order. "The pity," he cried, "is that the reformers do not know, and those who know are too idle to reform. Some day there will come the marriage of knowledge and will, and then the world will march." "You draw an awful picture," I said. "But if those extra-social brains are so potent, why after all do they effect so little? A dull police-officer, with