In the last chapter of his book, Freud deals with the problem of psychic determinism, for which he makes a case. He argues that "If one investigates, let us say, this seeming voluntary formation, for example, of a number of many digits uttered in unrestrained mirth, it always proves to be so strictly determined that the determination seems impossible". He then discusses a famous case of a name "arbitrarily chosen", the Dora's one. Analysing the motivation of his choice, it occurred to him that the nurse of his sister's children was named Dora. Then a slight recent event soon flashed into his mind which brought the looked-for determination. On his sister's dining-room he noticed a letter with the address "Miss Rosa W.". Flabbergasted, he was informed that the real name of Dora was in fact Rose, and that she had agreed to have her name changed in order to get the job, because Rosa would also refer to his sister".S. Freud: The Psychopathology of Everyday Life, Standard Edition, Vol. VI, pp. 240-241
