The philosopher Michael Ruse , writing in Homosexuality: A Philosophical Inquiry (1988), called Szasz the most forceful proponent of the thesis that mental illness is a myth, but while sympathetic to Szasz, considered his case over-stated. Ruse criticized Szasz's arguments on several grounds, maintaining that while the concepts of disease and illness were originally applied only to the physiological realm, they can properly be extended to the mind, and there is no logical absurdity involved in doing so.  Kenneth Lewes wrote that Szasz's book is the most notable example of the "critique of the institutions of psychiatry and psychoanalysis" that occurred as part of the "general upheaval of values in the 1960s", though he saw the work as less profound than Michel Foucault 's Madness and Civilization (1961).  The psychiatrist Peter Breggin called The Myth of Mental Illness a seminal work.  Richard Webster , writing in Why Freud Was Wrong (1995), observed that while some of Szasz's arguments are similar to his, he disagreed with Szasz's view that hysteria was an emotional problem and that Charcot's patients were not genuinely mentally ill.  The lawyer Linda Hirshman wrote that while few psychiatrists adopted the views Szasz expounded in The Myth of Mental Illness , the book helped to encourage a revision of their diagnostic and therapeutic claims.  The historian Lillian Faderman called Szasz's book the most notable attack on psychiatry published in the 1960s, adding that "Szasz's insights and critiques would prove invaluable to the homophile movement."