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 All this was a valuable experience to me. I do not know a better training for a writer than to spend some years in the medical profession. I suppose that you can learn a good deal about human nature in a solicitor’s office; but there on the whole you have to deal with men in full control of themselves. They lie perhaps as much as they lie to the doctor, but they lie more consistently, and it may be that for the solicitor it is not so necessary to know the truth. The interests he deals with, besides, are usually material. He sees human nature from a specialized standpoint. But the doctor, especially the hospital doctor, sees it bare. Reticences can generally be undermined; very often there are none. Fear for the most part will shatter every defence; even vanity is unnerved by it. Most people have a furious itch to talk about themselves and are restrained only by the disinclination of others to listen. Reserve is an artificial quality that is developed in most of us but as the result of innumerable rebuffs. The doctor is discreet. It is his business to listen, and no details are too intimate for his ears.