Leon, is an instance of pure and disinterested affection in one of the noblest of her sex. It is not improbable that the author found the model of this character in nature.—Of Mandeville, I shall say only one word. It appears to me to be a falling off in the subject, not in the ability. The style and declamation are even more powerful than ever. But unless an author surpasses himself, and surprises the public as much the fourth or fifth time as he did the first, he is said to fall off, because there is not the same stimulus of novelty. A great deal is here made out of nothing, or out of a very disagreeable subject. I cannot agree that the story is out of nature. The feeling is very common indeed; though carried to an unusual and improbable excess, or to one with which from the individuality and minuteness of the circumstances, we cannot readily sympathise. It is rare that a philosopher is a writer of romances. The union of the two characters in this author is a sort of phenomenon in the history of letters; for I cannot but consider the author of Political Justice as a philosophical reasoner of no ordinary stamp or pretensions. That work, whatever its defects may be, is distinguished by the most acute and severe logic, and by the utmost boldness of thinking, founded on a love and conviction of truth. It is a system of ethics, and one that, though I think it erroneous myself, is built on following up into its fair consequences, a very common and acknowledged principle, that abstract reason and general utility are the only test and standard of moral rectitude. If this principle is true, then the system is true: but I think that Mr. Godwin’s book has done more than any thing else to overturn the sufficiency of this principle by abstracting, in a strict metaphysical process, the influence of reason or the understanding in moral questions and relations from that of habit, sense, association, local and personal attachment, natural affection, &c.; and by thus making it appear how necessary the latter are to our limited, imperfect, and mixed being, how impossible the former as an exclusive guide of action, unless man were, or were capable of becoming, a purely intellectual being. Reason is no doubt one faculty of the human mind, and the chief gift of Providence to man; but it must itself be subject to and modified by other instincts and principles, because it is not the only one. This work then, even supposing it to be false, is invaluable as demonstrating an important truth by the _reductio ad absurdum_; or it is an _experimentum crucis_ in one of the grand and trying questions of moral philosophy.—In delineating the character and feelings of the hermetic philosopher St. Leon, perhaps the author had not far to go from those of a speculative philosophical Recluse. He who deals in the secrets of magic, or in the secrets of the human mind, is too often looked upon with jealous eyes by the world, which is no great conjuror;