Wikipedia note on Nobel Prize winning scientist Alexis Carrel , author of once popular best seller " Man , the Unknown "

Man, the Unknown (1935, 1939) Main article: Man, the Unknown [In 1935, Carrel's book, L'Homme, cet inconnu (Man, the Unknown), became a best-seller.[39] The book attempted to comprehensively outline what is known, and unknown, of the human body and human life "in light of discoveries in biology, physics, and medicine",[17] to shed light on the problems of the modern world, and to provide possible routes to a better life for human beings. In the book, Carrel argued that humans of "poor quality" were outbreeding those of good quality and causing the "enfeeblement of the white races."[40] He advocated for an elite group of intellectuals to guide mankind and to incorporate eugenics into the social framework. He argued for an aristocracy that would come from individuals of potential and advocated for euthanasia for criminals and the criminally insane. Notably, Carrel's endorsement of euthanasia for criminals and the criminally insane was published in the mid-1930s, prior to the implementation of death camps and gas chambers in Nazi Germany. In the 1936 German introduction of his book, Carrel added praise for the Nazi regime at the publisher's request, which did not appear in other language editions.[41] After the second world war the book and his role with the Vichy regime would stain his reputation such that his name was removed from streets in more than 20 French cities and the Alexis Carrel Medical Faculty in Lyon was renamed in 1996.][42]