There are some people whose habits of thought a boy or a young man might, with the greatest possible advantage to himself, make his own. But my Uncle Spencer was not one of them. His active mind darted hither and thither too wildly and erratically for it to be a safe guide for an inexperienced understanding. It was all too promptly logical to draw conclusions from false premises, too easily and enthusiastically accepted as true. Living as he did in solitude--in a mental solitude; for though he was no recluse and took his share in all social pleasures, the society of Longres could not offer much in the way of high intellectual companionship--he was able to give free play to the native eccentricity of his mind. Having nobody to check or direct him, he would rush headlong down intellectual roads that led nowhere or into morasses of nonsense. When, much later, I used to amuse myself by listening on Sunday afternoons to the speakers at Marble Arch, I used often to be reminded of my Uncle Spencer. For they, like Uncle Spencer, lived in solitude, apart from the main contemporary world of ideas, unaware, or so dimly aware that it hardly counted, of the very existence of organised and systematic science, not knowing even where to look for the accumulated stores of human knowledge. I have talked in the Park to Bible students who boasted that during the day they cobbled or sold cheese, while at night they sat up learning Hebrew and studying the critics of the Holy Book. And I have been ashamed of my own idleness, ashamed of the poor use I have made of my opportunities. These humble scholars heroically pursuing enlightenment are touching and noble figures--but how often, alas, pathetically ludicrous too! For the critics my Bible students used to read and meditate upon were always at least three-quarters of a century out of date--exploded Tübingen scholars or literal inspirationalists; their authorities were always books written before the invention of modern historical research; their philology was the picturesque _lucus a non lucendo_, bloody from by-our-Lady type; their geology had irrefutable proofs of the existence of Atlantis; their physiology, if they happened to be atheists, was obsoletely mechanistic, if Christians, merely providential. All their dogged industry, all their years of heroic striving, had been completely wasted--wasted, at any rate, so far as the increase of human knowledge was concerned, but not for themselves, since the labour, the disinterested ambition, had brought them happiness.