“Szasz opposed any involuntary psychiatric intervention and, along with the Cuckoo’s Nest portrayal, paved the way for the disastrous dismantling of U.S. mental health facilities. But more generally they helped make popular and respectable the idea that much of science is a sinister scheme concocted by a despotic conspiracy to oppress the people. Mental illness, both Szasz and Laing said, is “a theory not a fact”—now the universal bottom-line argument for anyone, from creationists to climate change deniers to antivaccine hysterics, who prefer to disregard science in favor of their own beliefs.”

― Kurt Andersen, Fantasyland: How America Went Haywire: A 500-Year History