would probably be found that the most devoted admirers of great writers on metaphysics do not adopt their opinions in the mass; and it seems that men must now go elsewhere than to the produce of human reason, for the grand leading principles of the philosophy of belief and disbelief. To those who hold that the writings of the great metaphysicians are thus to be esteemed on account, not of their fundamental principles, but of the truths they bring out in detail, a new theory is like a new road through an unfrequented country, valuable, not for itself, but for the scenery which it opens up to the traveller's eye. The thinker who adopts this view, often wonders at the small beginnings of philosophical systems--wonders, perhaps, at the circumstance of Kant having believed that his own system started into life at one moment as he was reading Hume's views of Cause and Effect. But the solution is ready at hand. We feel that the philosopher of Königsberg had in his mind the impulses that would have driven him into a new path had no Hume preceded him. We owe it to the Essay on Cause and Effect that it was the starting-point at which he left the beaten track; but, had it not attracted his attention, his path would have been as original, though not, perhaps, in the same direction. And so of Hume himself. If the main outline of his theory had never occurred to him, he would still have been a great philosopher; for in some form or other he would have found his way to those incidental and subsidiary discoveries, which are admitted to have reality in them by many who repudiate his general theory.