Mackenzie

“No man ever used a stethoscope with a higher degree of expertness than this man who declared that the stethoscope had ‘not only for one hundred years hampered the progress of knowledge of heart affections, but had done more harm than good, in that many people had had the tenor of their lives altered, had been forbidden to undertake duties for which they were perfectly competent, and had been subjected to unnecessary treatment because of its ‘findings’” (Wilson, 103-04).