填空题 英译汉。(南京师范大学2008研，考试科目：基础英语)A book is essentially not a talked thing, but a written thing: and written, not with a view of mere communication, but of permanence. The book of talk is printed only because its author cannot speak to thousands of people at once: if he could, he would—the volume is mere multiplication of his voice. You cannot talk to your friend in India: if you could, you would: you write instead:that is mere conveyance of voice. But a book is written, not to multiply the voice merely, not to carry it merely, but to perpetuate it. The author has somediing to say which he perceives to be true and useful, or helpfully beautiful. So far as he knows, no one has yet said it: so far as he knows, no one else can say it. He is bound to say it, clearly and melodiously if he may: clearly, at all events.