He had not finished, but I was relieved by the first part of his reply. As I cannot hope to appreciate more than a certain number of things in the world, I am willing, so far as pictures are concerned, to be limited to beautiful pictures, and to be proved ignorant and obtuse in regard to all others. For the same reason I have long since reconciled myself to the fact that there are some branches of science and natural history which I shall never master. I shall always endeavour to follow clever writers like Shaw and Brieux whose plays have, as the former puts it, "a really scientific natural history" for their basis. But I cannot hope to acquire the whole of knowledge or reform the whole of the world, and there are books which contain a great deal of sound knowledge and urgent opinion for which I have no use. Moreover, I deny Mr. Shaw's right to interfere with my enjoyment if I turn to literature which teaches nothing and serves no utilitarian or reforming purpose. It is only when I am in the scientific frame of mind that I desire accurate natural history, or when I am in the reforming frame of mind that I desire earnest exhortations to improve society. In the same way I am only drawn to the Post-Impressionists when I want, not beautiful pictures, but an agreeable sense of the impudence and imbecility of professional craftsmen. But when I am in the mood for literature and art, I demand something that shall appeal to my sense of beauty; and I refuse to be shamed into believing that I ought to prefer scientific knowledge, or ethical suasion, or those particular kinds of ugliness admired by some Realists and some Post-Impressionists. But I was a little disconcerted when my Post-Impressionist artist concluded with the remark: "I have never yet found anyone who could tell me what he meant by beauty."