later make ... between 'automatic anxiety' and 'anxiety as a signal'". For Jacques Lacan, repetition compulsion was one of the "four ... terms introduced by Freud as fundamental concepts, namely, the unconscious, repetition, the transference and the drive". Eric Berne adapted the way "Freud speaks of the repetition compulsion and the destiny compulsion ... to apply them to the entire life courses" of normals and neurotics alike. Gilles Deleuze observed that "in Beyond the Pleasure Principle, Freud is not really preoccupied with the exceptions to that principle", concluding that "there are no exceptions to the principle—though there would indeed seem to be some rather strange complications in the workings of pleasure." Both Melanie Klein and Lacan were to adopt versions of the death drive in their own theoretical constructs. "Klein's concept of the death drive differs from Freud's ... but there is an ever-increasing reference to the death drive as a given cause of mental development" in her works. Lacan for his part considered that "the death drive is only the mask of the symbolic order, in so ... far as it has not been realised", adding modestly of Beyond the Pleasure Principle "... either it makes not the least bit of sense or it has exactly the sense I say it has". Critical reception Beyond the Pleasure Principle may be Freud's most controversial text. Jacques Lacan described it as an "extraordinary text of Freud's, unbelievably ambiguous, almost confused". Peter Gay remarked in Freud: A Life for Our Time that "Beyond the Pleasure Principle is a difficult text ... the reassuring intimacy with clinical experience that marks most of Freud's papers, even at their most theoretical, seems faint here, almost absent". On the same terms, Gilles Deleuze wrote in his 1967 literary study Masochism: Coldness and Cruelty that "the masterpiece which we know as Beyond the Pleasure Principle is perhaps the one where he engaged most directly—and how penetratingly—in specifically philosophical reflection." Ernest Jones, one of Freud's closest associates and a member of his Inner Ring, stated that "the train of thought [is] by no means easy to follow ... and Freud's views on the subject have often been considerably misinterpreted." Jones concluded that "This book is further noteworthy in being the only one of Freud's which has received little acceptance on the part of his followers". Many of Freud's colleagues and students initially rejected the theories proposed in Beyond