Arthur James Balfour was born at Whittinghame, East Lothian, on July 25, 1848. He was barely ten years old when his father died, and he succeeded to the estate. He entered Eton in 1862, and there met Lord Rosebery. In 1866 he went to Trinity College, Cambridge, where he studied philosophy under Henry Sidgwick. In 1869 he obtained a second-class in the Moral Sciences Tripos. In an autobiographical note, written long afterwards, Lord Balfour made the following reference to his mental attitude as an undergraduate: “I went to Cambridge with a very small equipment of either philosophy or science, but a very keen desire to discover what I ought to think, and why. For the history of speculation I cared not a jot. Dead systems seemed to me of no more interest than abandoned fashions. My business was with the groundwork of living beliefs: in particular with the groundwork of that scientific knowledge whose recent developments had so profoundly moved the world.” Considering his attachment to the past in matters of Church and State, Lord Balfour's contempt for the history of philosophy seems to betray a curious limitation. Unfortunately for him, the history of philosophy was not an important feature in the Cambridge philosophical curriculum, and the defect avenged itself by marring his subsequent philosophy in various ways. No doubt Sidgwick did all he could to encourage and develop Balfour's critical powers. Cambridge philosophy, under the influence of Sidgwick, was critical rather than imaginative, just as Oxford philosophy, under the influence of Green, was imaginative rather than critical.