Knowledge and Human Interests received positive reviews from Fred E. Jandt in the
Journal of Applied Communication Research, Thomas B. Farrell in the
Quarterly Journal of Speech, and the sociologist
Anthony Giddens in the
American Journal of Sociology, a mixed review from the sociologist
Steven Lukes in the
British Journal of Sociology, and a negative review from the sociologist
David Martin in the
Jewish Journal of Sociology. Jandt found the book promising, though he considered it difficult to assess because of Habermas's competence in fields ranging from the logic of science to the sociology of knowledge. Farrell found the book ambitious in its goals and dispassionate in its approach. He believed that it formed part of a body of work which "comprises a dialectic sufficiently rigorous to indict and perhaps dislodge behavioral and scientistic theories of communication." Giddens described the book as one of Habermas's "major writings", adding that it was comparable to works such as
Legitimation Crisis (1973) and "culminates the first phase of Habermas's career and remains perhaps the most hotly debated of his works." He credited Habermas with developing and clarifying his arguments that the social sciences require connecting hermeneutics with empiricist philosophies of science. Lukes found the book disappointing. He wrote that, "Its style is unnecessarily obscure and high-flown, its lack of fine-grained philosophical analysis disappointing, and its concentration on the exegesis of other thinkers essentially diversionary." He maintained that while Habermas had interesting things to say about several thinkers, especially Freud, most of the exegesis was "familiar", while some of it was "perverse", such as Habermas's "juxtaposition of Comte and Mach under the label of 'positivism'." He credited Habermas with providing a systematic account of his view of his "philosophical ancestors", which he considered valuable since Habermas was an important representative of the
Frankfurt School, but believed Habermas failed to provide a satisfactory discussion of critical science or a direct discussion of the connection between knowledge and human interests. Martin argued that the work reflected the "impasse of the sociology of knowledge" and failed to explain how transforming social relations would make objectivity possible.
Knowledge and Human Interests was discussed by Paul Ricœur in the
Journal of the American Psychoanalytic Association, Rainer Nagele, Roland Reinhart, and Roger Blood in
New German Critique, Kenneth Colburn Jr. in
Sociological Inquiry, Steven Vogel in
Praxis International, Richard Tinning in
Quest, Jennifer Scuro in
The Oral History Review, and Myriam N. Torres and Silvia E. Moraes in the
International Journal of Action Research. In
Philosophy of the Social Sciences, it was discussed by Stephen D. Parsons and Michael Power. Ricœur endorsed Habermas's view that psychoanalysis misunderstood itself by claiming to be a natural science. Colburn questioned whether Habermas's attempt to demonstrate the connection between knowledge and interest helped him to critique positivism. He argued against Habermas that interest is not independent of knowledge. He criticized Habermas's
definition of knowledge. Torres and Moraes described
Knowledge and Human Interests as a "seminal work", and credited Habermas with providing "the theoretical framework for understanding curriculum and educational research." The philosopher
Walter Kaufmann criticized Habermas for poor scholarship in his treatment of Nietzsche. He noted that Habermas relied on the inadequate edition of Nietzsche's works prepared by Karl Schlechta. The philosopher
Leszek Kołakowski identified
Knowledge and Human Interests as one of Habermas's principal books. However, he questioned the accuracy of Habermas's understanding of both psychoanalysis and Marx's work, and criticized Habermas for failing to clearly define the concept of "emancipation". The philosopher Adolf Grünbaum noted that Habermas's conclusions had influenced both philosophers and psychoanalysts. However, he criticized Habermas's discussion of the scientific status of psychoanalysis. He described Habermas's arguments as inconsistent and his conclusions about the therapeutic effects of psychoanalytic treatment as incoherent as well as incompatible with Freud's hypotheses. He also argued that Habermas had a limited understanding of science and put forward a mistaken contrast between the human sciences and sciences such as physics. He rejected Habermas's view that it is the acceptance of psychoanalytic interpretations by patients in analytic treatment that establishes their validity and accused Habermas of quoting Freud out of context to help him make his case. The philosopher
Douglas Kellner credited Habermas with demonstrating the importance of psychoanalysis for "increasing understanding of human nature and contributing to the process of self-formation". He suggested that Habermas made better use of several Freudian ideas in
Knowledge and Human Interests than did Marcuse in
Eros and Civilization. The philosopher Jeffrey Abramson compared
Knowledge and Human Interests to
Herbert Marcuse's
Eros and Civilization (1955),
Norman O. Brown's
Life Against Death (1959),
Philip Rieff's
Freud: The Mind of the Moralist (1959) and Paul Ricœur's
Freud and Philosophy (1965). He wrote that these books jointly placed Freud at the center of moral and philosophical inquiry. The philosopher
Tom Rockmore described
Knowledge and Human Interests as a "complex study". He suggested that it may eventually be recognized as Habermas's most significant work. He found Habermas's discussion of Freud valuable, but argued that by attributing a view of knowledge and interest similar to his to Freud, he "cloaks his own theory in the prestige of Freud's." The philosopher
Jonathan Lear blamed
Knowledge and Human Interests, along with Ricœur's
Freud and Philosophy, for convincing some psychoanalysts that reasons cannot be causes. He credited Grünbaum with effectively criticizing Habermas. The historian Paul Robinson described Habermas's thinking about the nature of analytic cures as obscure. The critic
Frederick Crews criticized Habermas for helping to inspire unscientific defenses of Freud and psychoanalysis. He also charged him with misunderstanding Freud. He endorsed Grünbaum's criticism of Habermas. The philosopher
Alan Ryan argued that
Knowledge and Human Interests represented Habermas's "most radical thoughts about the connection between philosophical speculation and social emancipation". However, he maintained that the implications of its ideas for the social sciences were unclear, and that Habermas failed to develop them in his later work. He observed that readers who had initially been impressed by Habermas had been disappointed by this. The sociologist William Outhwaite described
Knowledge and Human Interests as "enormously ambitious and challenging". However, he noted that, following its publication, Habermas's interests shifted away from its focus on epistemological questions and toward "language and communicative action." The philosopher
Jon Barwise identified
Knowledge and Human Interests as Habermas's first major systematic work. ==See also==