“Long after the theories on which they were based had been debunked, Galen's concepts of sickness and its treatment continued to have a pervasive influence on the daily practice of medicine. Indeed, it is a measure of medicine's progress over the past fifty years that a goodly number of his remedies were still being used until well into the twentieth century.”
[Doctors: the biography of medicine, Random House, 1995, 53, https://books.google.com/books?id=22hNffrgFCkC&pg=PA53]
Doctors (1988)
Help us to complete the source, original and additional information
Sherwin B. Nuland 7
American surgeon 1930–2014Related quotes

although Alan Turing had an inkling of it in 1950
The Age of Spiritual Machines: When Computers Exceed Human Intelligence (1999)

Nobel lecture (1970)
Context: Our Twentieth Century has proved to be more cruel than preceding centuries, and the first fifty years have not erased all its horrors. Our world is rent asunder by those same old cave-age emotions of greed, envy, lack of control, mutual hostility which have picked up in passing respectable pseudonyms like class struggle, racial conflict, struggle of the masses, trade-union disputes. The primeval refusal to accept a compromise has been turned into a theoretical principle and is considered the virtue of orthodoxy. It demands millions of sacrifices in ceaseless civil wars, it drums into our souls that there is no such thing as unchanging, universal concepts of goodness and justice, that they are all fluctuating and inconstant. Therefore the rule — always do what's most profitable to your party. Any professional group no sooner sees a convenient opportunity to BREAK OFF A PIECE, even if it be unearned, even if it be superfluous, than it breaks it off there and then and no matter if the whole of society comes tumbling down.

The Enemies of Reason (August 2007)
I Talk Back to the Devil: Essays in Spiritual Perfection (1990).

Dara Ó Briain Talks Funny: Live in London (2008)
Introduction
Postwar: A History of Europe Since 1945 (2005)