15. And therefore, first of all, I tell you, earnestly and authoritatively (I _know_ I am right in this), you must get into the habit of looking intensely at words, and assuring yourself of their meaning, syllable by syllable--nay letter by letter. For though it is only by reason of the opposition of letters in the function of signs, to sounds in the function of signs, that the study of books is called "literature," and that a man versed in it is called, by the consent of nations, a man of letters instead of a man of books, or of words, you may yet connect with that accidental nomenclature this real fact;--that you might read all the books in the British Museum (if you could live long enough) and remain an utterly "illiterate," uneducated person; but that if you read ten pages of a good book, letter by letter,--that is to say, with real accuracy,--you are forevermore in some measure an educated person. The entire difference between education and non-education (as regards the merely intellectual part of it) consists in this accuracy. A well-educated gentleman may not know many languages,--may not be able to speak any but his own,--may have read very few books. But whatever language he knows, he knows precisely; whatever word he pronounces, he pronounces rightly; above all, he is learned in the _peerage_ of words; knows the words of true descent and ancient blood at a glance, from words of modern canaille; remembers all their ancestry, their inter-marriages, distant relationships, and the extent to which they were admitted, and offices they held, among the national noblesse of words at any time, and in any country. But an uneducated person may know, by memory, many languages, and talk them all, and yet truly know not a word of any,--not a word even of his own. An ordinarily clever and sensible seaman will be able to make his way ashore at most ports; yet he has only to speak a sentence of any language to be known for an illiterate person: so also the accent, or turn of expression of a single sentence, will at once mark a scholar. And this is so strongly felt, so conclusively admitted by educated persons, that a false accent or a mistaken syllable is enough, in the parliament of any civilized nation, to assign to a man a certain degree of inferior standing forever.