apropos for this week In the year 1806, a well-dressed man in his twenties visited a doctor who was renowned throughout London for being able to treat what nowadays we'd call depression, but back then was called melancholia. The patient explained that he felt overcome by a terrible sadness, that he didn't want to get up in the morning. He could not see any point in his existence. ""With your condition I would normally prescribe a course of my patent powders,"" said the doctor, ""but it so happen…