6 ideas
Disease, in the strict medical sense, is a demonstrable lesion or physiological malfunction of the body, so the mind, which is not a bodily organ, cannot be diseased except metaphorically. Calling troubling conduct 'illness' moves a figure of speech into literal use, the way one might say an economy is 'sick'. What is left, once the metaphor is taken away, are problems in living: conflicts about values, relationships, and conduct.
Szasz reads hysterical and other psychiatric 'symptoms' as a protolanguage, bodily signs that communicate distress or make demands when direct speech is unavailable, forbidden, or ineffective. A paralysis or fit is then a message addressed to someone, not a mechanical breakdown. The clinical question changes from 'what is wrong with this body?' to 'what is this person trying to say, and to whom?'
Human conduct is modelled as participation in games that have rules, roles, and strategies, and those games are learned in families, religions, and cultures. Behaviour called 'mental illness' is often a strategy within a game, such as playing the helpless sufferer to win care or exemption from obligations, especially when the person cannot win by honest play. Understanding the person means identifying which game they are playing and why they chose that move.
In the 19th century, Charcot and his successors took hysteria, previously treated as malingering or moral failing, and declared it a genuine neurological-type illness. That decision was a strategic and moral one, not a scientific discovery: it gave suffering people a dignified sick role and gave physicians jurisdiction over them. The episode shows how the boundaries of 'illness' get redrawn by professional and social interests rather than by new findings about the body.
By turning deviance into disease, psychiatry lets society restrain, confine, and 'treat' people for disturbing conduct without the legal protections that apply to criminal punishment. Involuntary commitment and the insanity defence dress up moral judgments in medical vocabulary, and that disguise hides coercion as help. In this role the psychiatrist acts as an agent of the family or the state, not of the patient.
The label of mental illness takes away agency: it treats a person's choices as caused events and so excuses them from responsibility while also stripping them of liberty. Szasz argues that respecting people means holding them accountable for their conduct, including self-destructive conduct, and refusing to coerce them 'for their own good'. On his view, therapy is legitimate only as a voluntary, contractual relationship between autonomous adults.