Alberuni, quoted from Lal, K. S. (1992). The legacy of Muslim rule in India. New Delhi: Aditya Prakashan. Chapter 1 
From Alberuni's India
                                    
“The art, also, of alchemy or chemistry is surrounded with such insoluble enigmas that we can scarcely gain anything but ignorance therefrom, and ignotum per ignotius.”
Robert Fludd, cited in: Waite (1887, p. 291)
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Robert Fludd 6
British mathematician and astrologer 1574–1637Related quotes
Source: god is Not Great: How Religion Poisons Everything
                                        
                                        quote of 1918 
quoted in Abstract Art, Anna Moszynska, Thames and Hudson 1990, p. 85 
1912 – 1919
                                    
Source: Understanding International Conflicts: An Introduction to Theory and History (6th ed., 2006), Chapter 8, The Information Revolution and the Diffusion of Power, p. 252.
                                        
                                        In response to critics and ballet fans who say Tidwell "sold-out" by auditioning on So You Think You Can Dance 
La Rocco Claudia.  "TV Viewers Discover Dance, and the Debate Is Joined" http://www.nytimes.com/2007/09/21/arts/dance/21revo.html?ref=dance#, The New York Times, September 21, 2007