_:vb6878614 . _:vb6878613 . . _:vb6878614 "2003, Roy Porter, Flesh in the Age of Reason, Penguin, published 2004, page 182:"@en . "1" . _:vb6878614 "Locke, by contrast, contended that [madness] was essentially a question of intellectual delusion, the capture of the mind by false ideas concatenated into a logical system of unreality."@en . _:vb6878613 "To join or link together, as though in a chain."@en .