any philosophical or metaphysical inquiry, any inquiry as to why I believed, how I believed, what I believed, or what the fundamental stuff of things was. Now following hard upon this interlude with knowledge, came a time when I had to give myself to teaching, and it became advisable to acquire one of those Teaching Diplomas that are so widely and so foolishly despised, and that enterprise set me to a superficial, but suggestive study of educational method, of educational theory, of logic, of psychology, and so at last, when the little affair with the diploma was settled, to philosophy. Now to come to logic over the bracing uplands of comparative anatomy is to come to logic with a lot of very natural preconceptions blown clean out of one's mind. It is, I submit, a way of taking logic in the flank. When you have realised to the marrow, that all the physical organs of man and all his physical structure are what they are through a series of adaptations and approximations, and that they are kept up to a level of practical efficiency only by the elimination of death, and that this is true also of his brain and of his instincts and of many of his mental predispositions, you are not going to take his thinking apparatus unquestioningly as being in any way mysteriously different and better. And I had read only a little logic before I became aware of implications that I could not agree with, and assumptions that seemed to me to be altogether at variance with the general scheme of objective fact established in my mind. I came to an examination of logical processes and of language with the expectation that they would share the profoundly provisional character, the character of irregular limitation and adaptation that pervades the whole physical and animal being of man. And I found the thing I had expected. And as a consequence I found a sort of intellectual hardihood about the assumptions of logic, that at first confused me and then roused all the latent scepticism in my mind. My first quarrel with the accepted logic I developed long ago in a little paper that was printed in the Fortnightly Review in July 1891. It was called the "Rediscovery of the Unique," and re-reading it I perceive not only how bad and even annoying it was in manner--a thing I have long known--but also how remarkably bad it was in expression. I have good reason for doubting whether my powers of expression in these uses have very perceptibly improved, but at any rate I am doing my best now with that previous failure before me.