Butler's moral note is rather attractive to young and middle-aged persons: "We have all sinned and come short of the glory of making ourselves as comfortable as we easily might have done." His ethics is founded realistically on physiology and economics; for "goodness is naught unless it tends towards old age and sufficiency of means." Pleasure, dressed like a quiet man of the world, is the best teacher: "The devil, when he dresses himself in angels' clothes, can only be detected by experts of exceptional skill, and so often does he adopt this disguise that it is hardly safe to be seen talking to an angel at all, and prudent people will follow after pleasure as a more homely but more respectable and on the whole more trustworthy guide." There we have something of the tone of our genial Franklin; but Butler is a Franklin without a single impulse of Franklin's wide benevolence and practical beneficence, a Franklin shorn of the spirit of his greatness, namely, his immensely intelligent social consciousness. Having disposed of Christianity, orthodox and otherwise, and having reduced the morality of "enlightened selfishness" to its lowest terms, Butler turned in the same spirit to the destruction of orthodox Victorian science. We are less concerned for the moment with his substance than with his character and manner as scientific controversialist. "If I cannot," he wrote, "and I know I cannot, get the literary and scientific bigwigs to give me a shilling, I can, and I know I can, heave bricks into the middle of them." Though such professional training as he had was for the church and for painting, he seems never to have doubted that his mother wit was sufficient equipment, supplemented by reading in the British Museum, for the overthrow of men like Darwin, Wallace and Huxley, who from boyhood had given their lives to collecting, studying and experimenting with scientific data. "I am quite ready to admit," he records, "that I am in a conspiracy of one against men of science in general." Having felt himself covertly slighted in a book for which Darwin was responsible, he vindictively assailed, not merely the work, but also the character of Darwin and his friends, who, naturally inferring that he was an unscrupulous "bounder" seeking notoriety, generally ignored him.