Scottish psychiatrist Ronald David Laing (1927-1989) was born in Govanhill, Glasgow and gained international fame with The Divided Self (1960), a book that examined the treatment of mental illness, a term he hated.
About knowledge, he said, "If I don't know I don't know, I think I know. If I don't know I know, I think I don't know."
His revolutionary doctrine of "anti-psychiatry" celebrated all experience as an "enriching experience" and blamed society or a patient's immediate family for a patient's emotional breakdown. In The Politics of Experience (1967), he further blamed society for creating sickness.
"Insanity is a perfectly rational adjustment to an insane world," he said.
"Perhaps men and women were born to love one another, simply and genuinely, rather than to this travesty that we call love. If we can stop destroying ourselves we may stop destroying others."