It is much more important to know what sort of a patient has a disease than what sort of a disease a patient has.
William OslerA man is sane morally at thirty, rich mentally at forty, wise spiritually at fifty-or never!
William OslerThere 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 OslerFew diseases present greater difficulties in the way of diagnosis than malignant endocarditis, difficulties which in many cases are practi- cally insurmountable. It is no disparagement to the many skilled physicians who have put their cases upon record to say that, in fully one-half the diagnosis was made post mortem.
William Osler