Drapetomania

"In the nineteenth century, ... official Western medicine recognized drapetomania, the tendency of slaves to run away from their owners, as a disease. ... With hindsight, drapetomania is easily dismissed as a harmful fabrication of fictitious disease, in a culture violating human rights. Less easy is it to recognize harmful fabrications of our own era for what they are."

"What had been drapetomania became depression. ... Modern man runs away from a life that seems to him a kind of slavery."