Szasz was a heretic in psychiatry. This means that his opinions were very different to the ideas generally accepted within psychiatry. He said that psychiatry is a pseudoscience. He compared it to religion. In "Schizophrenia: The Sacred Symbol of Psychiatry", Szasz argued that schizophrenia is a symbol that is 'worshipped' by psychiatrists in the same way that Christians worship Christ. He said that mental illness is not an illness of the brain but "problems of living". People described Szasz as being 'anti psychiatry'. In response to this Szasz wrote a book called "Antipsychiatry: Quackery Squared". He believed that mental hospitals are like prisons.