To Mr. Stewart also I wish to express my gratitude, not only for much assistance derived from his admirable Notes on the Nicomachean Ethics (Oxford, 1892), but also for much kindly and helpful criticism in that work and in a review of my first edition ( Mind , July, 1881). My old friends Mr. A. C. Bradley and Mr. J. Cook Wilson (professors now at Glasgow and Oxford respectively) will allow me to repeat my thanks for the valuable help they gave me when the first edition was passing through the press. To Mr. F. H. Hall of Oriel, and Mr. L. A.