_Nat. Phil_. It does not persuade me. I know that you love metaphysics, whereas I for my part hold to physics. To your subtleties, I oppose simple common sense, which is sufficient for me. Thus, I venture to assert, without appealing to the microscope, that life is better than death. Judging between the two, I would give the apple to the former, without troubling them to strip for the contest. _Met_. And I would do the same. But when I call to mind the custom of those barbarians, who, for every unhappy day of their lives, used to throw a black stone into a quiver, and for every happy day a white one, I cannot help thinking how few white stones compared to the black ones would be found therein on the death of the proprietor of the quiver. Personally, I should like to have now all the stones representing the days of life yet remaining to me, and permission to separate them, throwing away all-the black ones and retaining only those that were white; even though the number of the latter was exceedingly small, and their colour a doubtful white. _Nat. Phil_. Many people, on the contrary, would be glad to increase the number of their black stones, even though they were blacker than they naturally would be; because they always, in their minds, dread the last as the blackest of all. And such people, of whom I am one, will really be able to add many stones to their normal quantity, if they follow out the instructions contained in my book. _Met_. Every one thinks and works in his own way. Death also will not fail to do the same. But if you wish, in prolonging man's life; really to be of service to him, discover an art to increase the number and strength of sensations, and their effects. This would be a genuine augmentation of human life, for it would fill up those long intervals of time, during which we vegetate rather than live. You could then boast of having truly prolonged human life; and without having sought after the impossible, or used violence to natural laws; rather, by having strengthened them. For does it not seem as though the ancients were more full of life than we are, in spite of the many and great dangers by which they were surrounded, and which generally shortened their existence? You will thus render a real service to man, whose life is, I will not say more happy, but certainly less unhappy, when it is better occupied and more violently agitated, without pain or discomfort. When, on the other hand, existence is so full of idleness and ennui as to be justly termed empty, the saying of Pyrrhus, "there is no difference between life and death," is literally realised. Were this saying true, I should be in no slight terror of death. But finally, unless life be active and vigorous, it is not true life, and death is far preferable to it. [Footnote 1: See _Instruction in the Art of Long Life_, by Hufeland.] [Footnote 2: See Lucian, Dial. Menip. and Chiro.] [Footnote 3: See Pindar, Strabo, and Pliny.]