The treatise on 'Old Age', which is thrown into the form of a dialogue, is said to have been suggested by the opening of Plato's 'Republic', in which Cephalus touches so pleasantly on the enjoyments peculiar to that time of life. So far as light and graceful treatment of his subject goes, the Roman essayist at least does not fall short of his model. Montaigne said of it, that "it made one long to grow old";[1] but Montaigne was a Frenchman, and such sentiment was quite in his way. The dialogue, whether it produce this effect on many readers or not, is very pleasant reading: and when we remember that the author wrote it when he was exactly in his grand climacteric, and addressed it to his friend Atticus, who was within a year of the same age, we get that element of personal interest which makes all writings of the kind more attractive. The argument in defence of the paradox that it is a good thing to grow old, proceeds upon the only possible ground, the theory of compensations. It is put into the mouth of Cato the Censor, who had died about a century before, and who is introduced as giving a kind of lecture on the subject to his young friends Scipio and Laelius, in his eighty-fourth year. He was certainly a remarkable example in his own case of its being possible to grow old gracefully and usefully, if, as he tells us, he was at that age still able to take part in the debates in the Senate, was busy collecting materials for the early history of Rome, had quite lately begun the study of Greek, could enjoy a country dinner-party, and had been thinking of taking lessons in playing on the lyre. [Footnote 1: "Il donne l'appetit de vieiller".]