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my writings, both great and small, have largely benefited by her accurate and clear-sighted criticism.[1] The chapter of the Political Economy which has had a greater influence on opinion than all the rest, that on “the Probable Future of the Labouring Classes,” is entirely due to her: in the first draft of the book, that chapter did not exist. She pointed out the need of such a chapter, and the extreme imperfection of the book without it: she was the cause of my writing it; and the more general part of the chapter, the statement and discussion of the two opposite theories respecting the proper condition of the labouring classes, was wholly an exposition of her

  1. The only person from whom I received any direct assistance in the preparation of the System of Logic was Mr. Bain, since so justly celebrated for his philosophical writings. He went carefully through the manuscript before it was sent to press, and enriched it with a great number of additional examples and illustrations from science; many of which, as well as some detached remarks of his own in confirmation of my logical views, I inserted nearly in his own words.<.>My obligations to Comte were only to his writings—to the part which had then been published of his “Système de Philosophie Positive:” and, as has been seen from what I have already said in this narrative, the amount of these obligations is far less than has sometimes been asserted. The first volume, which contains all the fundamental doctrines of the book, was substantially complete before I had seen Comte’s treatise. I derived from him many valuable thoughts, conspicuously in the chapter on Hypotheses and in the view taken of the logic of Algebra: but it is only in the concluding Book, on the Logic of the Moral Sciences, that I owe to him any radical improvement in my conception of the application of logical method. This improvement I have stated and characterized in a former part of the present Memoir.