Since this is the age of science, not religion, psychiatrists are our rabbis, heroin is our pork, and the addict is the unclean person. - Thomas Szasz

For millennia, the dialectic of vilification and deification and, more generally, of invalidation and validation—excluding the individual from the group as an evil outsider or including him in it as a member in good standing—was cast in the imagery and rhetoric of magic and religion. ... With the decline of the religious world view and the ascent of the scientific method during the Renaissance and the Enlightenment, the religious rhetoric of validation and invalidation was gradually replaced by the scientific. One of the most dramatic results of this transformation is the lexicon of psychiatric diagnoses functioning as a powerful, but largely unacknowledged, rhetoric of rejection and stigmatization.

By pretending that convention is Nature, that disobeying a personal prohibition is a medical illness, they establish themselves as agents of social control and at the same time disguise their punitive interventions in the semantic and social trappings of medical practice.

We speak of a person being “under the influence” of alcohol, or heroin, or amphetamine, and believe that these substances affect him so profoundly as to render him utterly helpless in their grip. We thus consider it scientifically justified to take the most stringent precautions against these things and often prohibit their nonmedical, or even their medical, use. But a person may be under the influence not only of material substances but also of spiritual ideas and sentiments, such as patriotism, Catholicism, or Communism. But we are not afraid of these influences, and believe that each person is, or ought to be, capable of fending for himself.