"Well in that essay, Beattie[1] cites the extraordinary instance of Simon Browne, a learned and pious clergyman, who seriously disbelieved the existence of his own soul; and imagined that, by interposition of Divine power, his soul was annulled, and nothing left but a principle of animal life, which he held in common with the brutes! When, years ago, a thoughtful imaginative student, you came on that story, probably enough you would have paused, revolved in your own mind and fancy what kind of a creature a man might be, if, retaining human life and merely human understanding, he was deprived of the powers and properties which reasoners have ascribed to the existence of soul. Something in this young man, unconsciously to yourself, revives that forgotten train of meditative ideas. His dread of death as the final cessation of being, his brute-like want of sympathy with his kind, his incapacity to comprehend the motives which carry man on to scheme and to build for a future that extends beyond his grave,--all start up before you at the very moment your reason is overtasked, your imagination fevered, in seeking the solution of problems which, to a philosophy based upon your system, must always remain insoluble. The young man's conversation not only thus excites your fancies,--it disturbs your affections. He speaks not only of drugs that renew youth, but of charms that secure love. You tremble for your Lilian while you hear him! And the brain thus tasked, the imagination thus inflamed, the heart thus agitated, you are presented to Sir Philip Derval, whose ghost your patient had supposed he saw weeks ago.