As in these and similar instances, or to take a larger range, as in the great diversity of characters that have existed during some thousand years, no decided difference has been observed in the duration of human life from the operation of intellect, the mortality of man on earth seems to be as completely established, and exactly upon the same grounds, as any one, the most constant, of the laws of nature. An immediate act of power in the Creator of the Universe might, indeed, change one or all of these laws, either suddenly or gradually, but without some indications of such a change, and such indications do not exist, it. Is just as unphilosophical to suppose that the life of man may be prolonged beyond any assignable limits, as to suppose that the attraction of the earth will gradually be changed into repulsion and that stones will ultimately rise instead of fall or that the earth will fly off at a certain period to some more genial and warmer sun.
The conclusion of this chapter presents us, undoubtedly, with a very beautiful and desirable picture, but like some of the landscapes drawn from fancy and not imagined with truth, it fails of that interest in the heart which nature and probability can alone give.
I cannot quit this subject without taking notice of these conjectures of Mr Godwin and Mr Condorcet concerning the indefinite prolongation of human life, as a very curious instance of the longing of the soul after immortality. Both these gentlemen have rejected the light of revelation which absolutely promises eternal life in another state. They have also rejected the light of natural religion, which to the ablest intellects in all ages has indicated the future existence of the soul. Yet so congenial is the idea of immortality to the mind of man that they cannot consent entirely to throw it out of their systems. After all their fastidious scepticisms concerning the only probable mode of immortality, they introduce a species of immortality of their own, not only completely contradictory to every law of philosophical probability, but in itself in the highest degree narrow, partial,