"... I began at the beginning, and read Hind's Logic, Whately's Logic, Reid's Enquiry into the Human Mind on the Principles of Common Sense. But the book which was of most use to me on these subjects was Stewart's Elements. I found on odd volume of this in my father's study at Hauxwell. It attracted me; I read and re-read it with increasing satisfaction. To Dugald Stewart, an author now obsolete, I owe the first infusion of a taste for philosophical inquiry. ...."