"But the day that is good for my aunt must be bad for you. The buyers and sellers should each have fair play. Mr. Carat, your weights should be diamonds, and then the changes in the weight of the air would not signify one way or the other.{3}" {Footnote 3: This observation was literally made by a boy of ten years of age.} Mr. Carat smiled at this speech, but, suppressing his contempt for the young gentleman, only observed, that he should most certainly follow Mr. Charles's advice, whenever he _wash_ rich enough to have diamonds for weights. The traveller drew from his pocket a small book, took a pen, and wrote in the title-page of it, _For one who will make a good use of it_; and, with Mrs. Howard's permission, he gave the book to her nephew. "I do not believe," said the gentleman, "that there is at present another copy in England: I have just got this from France by a private hand." The sale of his aunt's books appeared to Charles a much more serious affair than the parting with her diamonds. He understood something of the value of books, and he took a sorrowful leave of many which he had read, and of many more which he had intended to read. Mrs. Howard selected a few for her own use, and she allowed her nephew to select as many for himself as she had done. He observed that there was a beautiful edition of Shakspeare, which he knew his aunt liked particularly, but which she did not keep, reserving instead of it Smith's Wealth of Nations, which would in a few years, she said, be very useful to him. He immediately offered his favourite Etudes de la Nature to redeem the Shakspeare; but Mrs. Howard would not accept of it, because she justly observed, that she could read Shakspeare _almost_ as well without its being in such a beautiful binding. Her readiness to part with all the luxuries to which she had been for many years accustomed, and the freedom and openness with which she spoke of all her affairs to her nephew, made a great impression upon his mind. Those are mistaken who think that young people cannot be interested in such things: if no mystery be made of the technical parts of business, young people easily learn them, and they early take an interest in the affairs of their parents, instead of learning to separate their own views from those of their friends. Charles, young as he was, at this time, was employed by his aunt frequently to copy, and sometimes to write, letters of business for her. He drew out a careful inventory of all the furniture before it was disposed of; he took lists of all the books and papers: and at this work, however tiresome, he was indefatigable, because he was encouraged by the hope of being useful. This ambition had been early excited in his mind.