“When values have their foundation in man, they are very fragile. It's enough to look at the 20th century.”
Euthanasia similar to Hitler’s racial purging, says Nuncio in Spain https://www.catholicnewsagency.com/news/12276/euthanasia-similar-to-hitlers-racial-purging-says-nuncio-in-spain (8 April 2008)
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Manuel Monteiro de Castro 1
secretary of the Congregation for Bishops 1938Related quotes

“Xenophobia looks like becoming the mass ideology of the 20th-century fin-de-siecle.”
Divided Europeans: Understanding Ethnicities in Conflict http://books.google.co.in/books?id=4aECmbMMzIYC&pg=PA41 (1999), p. 41.

The day Francisco Franco, the dictator, died. Frases que reflejan el recorrido de Manuel Fraga, 16th January 2012, Gara, 16th January 2012, castellà http://www.gara.net/azkenak/01/315809/es/Frases-que-reflejan-recorrido-Manuel-Fraga,
Franco and Francoism

From an interview with VIBE, " Caught Up http://books.google.co.uk/books?id=hSYEAAAAMBAJ&pg=PA68&lpg=PA68&dq=%22It+can+never+be+bad+to+have+a+foundation+as+a+man%22+usher&source=bl&ots=znEcU5UzFB&sig=nSA9TRsN-0VmlAwizQ_1eicZRP0&hl=en&sa=X&ei=ow81T8e2JOet0QWamd2xAg&ved=0CCUQ6AEwAQ#v=onepage&q=%22It%20can%20never%20be%20bad%20to%20have%20a%20foundation%20as%20a%20man%22%20usher&f=false" (July 2008), p. 65-71.

Source: Debunking Economics - The Naked Emperor Of The Social Sciences (2001), Chapter 13, Nothing To Lose But Their Minds, p. 270–271 (See also: Adam Smith, Wealth of Nations, Book I, Chapter VI, p. 58)

“One of the greatest writers of [the 20th] century.”
Arthur C. Clarke, quoted on the backcover of Time and the Gods, the second volume of the Fantasy Masterworks series
About

Letter to Lord Minto (19 September 1907), quoted in D. A. Hamer, Lord Morley: Liberal Intellectual in Politics (1968), p. 56
1900s

“Atomic physics, was the worst thing that happened in the 20th century.”
Gustav Metzger: 'Destroy, and you create', 2012

"Transhuman FM-2030" http://www.transhuman.org/transhumanfm-2030.htm, transhuman.org

“Keynes was no revolutionary, but his ideas revolutionized 20th-century economics.”
Source: Understanding Capitalism: Competition, Command, and Change, 2005, p.82