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The Blue Book, by Ludwig Wittgenstein (1958)*

PREFACE

DEAR RUSSELL

Two years ago, or so, I promised to send you a manuscript of mine. Now the one I amsending you to-day isn't thatmanuscript. I'm still pottering about with it, and God

knows whether I will ever publish it, or any of it. But two years ago I held some lectures

in Cambridge and dictated some notes to my pupils so that they might have something

to carry home with them, in their hands if not in their brains. And I had these notes

duplicated. I have just been correcting misprints and other mistakes in some of the

copies and the idea came into my mind whether you might not like to have a copy. So

I'm sending you one. I don't wish to suggest that you should read the lectures; but ifyou

should have nothing better to do and ifyou should get some mild enjoyment out of them

I should be very pleased indeed. (I think it's very difficult to understand them, as so

many points are just hinted at. They are meant only for the people who heard the

lectures.) As I say, if you don't read them it doesn't matter at all.

yours ever,

LUDWIG WITTGENSTEIN

The Blue Book

WHAT is the meaning of a word?

Let us attack this question by asking, first, what is an explanation of the meaning of a

word; what does the explanation of a word look like?

The way this question helps us is analogous to the way the question "how do wemeasure a length" helps us to understand the problem "what is length?"

The question "What is length?", "What is meaning?", "What is the number one?" etc.,

produce in us a mental cramp. We feel that we can't point to anything in reply to them

and yet ought to point to something. (We are up against one of the great sources of

philosophical bewilderment: a substantive makes us look for a thing that corresponds to

it.)

Asking first "What is an explanation of meaning?" has two advantages. You in a sense

bring the question "what is meaning" down to earth. For, surely, to understand the

meaning of "meaning" you ought also to understand the meaning of "explanation of

meaning". Roughly: "let's ask what the explanation of meaning is, for whatever that

explains will be the meaning." Studying the grammar of the expression "expression ofmeaning" will teach you something about the grammar of the word "meaning" and will

cure you of the temptation to look about you for some object which you might call "the

meaning" [ .]

Suppose I give to an Englishman the ostensive definition "this is what the Germans call

'Buch'". Then, in the great majority of cases at any rate, the English word "book" will

come into the Englishman's mind. We may say he has interpreted "Buch" to mean

"book". The case will be different if e.g. we point to a thing which he has never seen

before and say: "This is a banjo". Possibly the word "guitar" will then come into his

mind, possibly no word at all but the image of a similar instrument, possibly nothing atall.

*http://www.geocities.jp/mickindex/wittgenstein/witt_blue_en.html

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