But, independently of the philosophical value of the document, to be thus admitted into the secrecy of the thoughts of a man ambitious of high literary distinction, and who has attained his object, is a rare privilege. The revelation, notwithstanding its foreboding tone, is calculated to give far more pleasure than pain. The future, which seemed to the desponding philosopher for a moment so dark, we know to have brightened on him. Hume was of the happy few who lived to see their airy castles substantially realized. Comparing what it reveals of the inner man, with the subsequent history of his achievements, the picture supplied by this fragment of autobiography is a happy one. We sympathize with the aspiring dreams of the young man, without feeling that they were afterwards doomed to disappointment. The immediate occasion of his earnest appeal is undoubtedly one of despondency; but it was preceded by hope, as we know it was followed by success; and notwithstanding this passing cloud, it may fairly be pronounced, that though Hume enjoyed through life more than the average portion of human happiness, he had no moments of purer felicity than those in which, in the retirement of his paternal home, he was sketching the airy outline of his subsequent career. Perhaps the feature that will most forcibly strike the reader, is the evidence of the deep-rooted ambition to found a philosophical reputation, that seems to have filled the mind of the writer of this document. The consciousness that the receiver of the paper must at once perceive this circumstance, and the desire not to let a stranger penetrate his aspiring thoughts, must have been the reasons of his desire for secrecy: it was natural that one who had not entered the lists to struggle for literary distinction, should wish to conceal how strong and inextinguishable was his desire to obtain the prize. The intensity of his anxiety on this subject seems to have made him, in relation to his mind, what the ordinary hypochondriac is as to his physical constitution. The desire to preserve the elements of distinction was so intense, that it disturbed him with vain fears for their disappearance. Feeling within him, at times, the consciousness of possessing an original genius,--that it should depart from him, and that his lot should be cast among that of ordinary mortals, with good physical health and commonplace abilities, appeared to him the most awful calamity which fate could have in store for him. Of the excellent physical health which accompanied these unpleasant variations of his mental capacity, he speaks with an almost sardonic scorn, as one who, in the bitterness of being bereft of what is all in all to him, talks of some paltry trifle which fortune in her sarcastic malice has chosen to leave untouched. In short, the manner in which he speaks of the departure of his cunning, must almost necessarily convey to the reader a considerable portion of that ludicrous character which is always