There are, in truth, no specialties in medicine, since to know fully many of the most important diseases a man must be familiar with their manifestations in many organs.
William OslerThe teacher's life should have three periods, study until twenty-five, investigation until forty, profession until sixty, at which age I would have him retired on a double allowance.
William OslerNo bubble is so iridescent or floats longer than that blown by the successful teacher.
William Osler