The Interpretation of Dreams by Sigmund Freud Chapter 2 Page 47

The remark “That is all gone” arose from the treatment. A few days before I said myself to the patient that the earliest reminiscences of childhood are all gone as such, but are replaced by transferences and dreams. Thus I am the butcher.

The second remark, “I don't know that” arose in a very different connection. The day before she had herself called out in rebuke to the cook (who, moreover, also appears in the dream): “Behave yourself properly; I don't know that” — that is, “I don't know this kind of behavior; I won't have it.” The more harmless portion of this speech was arrived at by a displacement of the dream content; in the dream thoughts only the other portion of the speech played a part, because the dream work changed an imaginary situation into utter