"有一半是錯的"

http://hms.harvard.edu/public/history/past-deans.html
Past Deans of the Faculty of Medicine
1935-1949 Charles Sidney Burwell
1949-1965 George Packer Berry
Dr. Berry maintained that it is preferable to graduate medical students who know less, but who better understand how to learn more. In an address to students at the Medical School, he said, “Half of what we are going to teach you is wrong, and half of it is right. Our problem is that we don’t know which half is which.”

可是哈佛自家的Quiz頁面
http://harvardmedicine.hms.harvard.edu/history/things/skeletonsquiz.php
也說是Charles Sidney Burwell

校長的演講也是
http://hms.harvard.edu/public/news/flier_commencement/flier_060608.html
Still we should keep in mind the words of a former leader of HMS, Dr. C. Sidney Burwell, who was dean from 1935 to ’49. At an HMS graduation in the late 1940s, he said “…Half of what we have taught you is wrong. Unfortunately, we don’t know which half.” Though this quip may cause us to laugh, it is surely still true today.

http://www.books.com.tw/exep/prod/booksfile.php?item=0010516320
曾任哈佛醫學院院長的博維爾告訴學生：「你們在醫學院學到的東西，十年後有一半都會被證明是錯的。」

http://www.nytimes.com/2009/06/03/education/03tosteson.html
The change in approach, said Dr. Jeffrey S. Flier, the current dean, reflected an observation made decades earlier by Dr. Charles Sidney Burwell, who was dean from 1935 to 1949. By the time students finish medical school, half of what they learn is no longer true, Burwell said. “This troubles me,” Burwell went on, “but what troubles me more is I don’t know which half it is.”