“Finally, have we lamented along with the Saints that we see ourselves constrained to endure in the world; and have we desired to leave it in order to flee the danger that there will be something it corrupts?”
Enfin, gémissons-nous souvent avec les Saints de nous voir contraints de demeurer encore dans le monde; et avons-nous désiré d'en sortir pour fuir le danger qu'il y a de s'y corrompre?
Examens particuliers sur divers sujets, p. 322 http://books.google.com/books?id=esY9AAAAIAAJ&pg=PA322
Examens particuliers sur divers sujets [Examination of Conscience upon Special Subjects] (1690)
Original
Enfin, gémissons-nous souvent avec les Saints de nous voir contraints de demeurer encore dans le monde; et avons-nous désiré d'en sortir pour fuir le danger qu'il y a de s'y corrompre?
Examens particuliers sur divers sujets [Examination of Conscience upon Special Subjects] (1690)
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Louis Tronson 11
French Roman Catholic priest 1622–1700Related quotes

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Maxim 68, trans. Stopp
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Attributed

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Also quoted in "Stephen Hawking warns over making contact with aliens" http://news.bbc.co.uk/2/hi/uk_news/8642558.stm at BBC News (25 April 2010).
Into The Universe with Stephen Hawking (2010)
Context: If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans. … We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.