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Notation as a Tool of Thought (1979)
                                    
Source: Mindstorms: Children, Computers, and Powerful Ideas (1980), Chapter 1, Computers and Computer Cultures
                                        
                                        §5.4 
Notation as a Tool of Thought (1979)
                                    
Public Talks, The State of the Onion 10
                                        
                                        1978 Turing Award  Citation https://web.archive.org/web/20070708004814/http://awards.acm.org/citation.cfm?id=4173633&srt=all&aw=140&ao=AMTURING. 
About
                                    
Source: Math for the Layman (1999), Ch. 10, §D
“… greatest single programming language ever designed. (About the Lisp programming language.)”
                                        
                                        2003.  Daddy, Are We There Yet? A Discussion with Alan Kay http://www.openp2p.com/pub/a/p2p/2003/04/03/alan_kay.html 
2000s
                                    
Yukihiro Matsumoto " I'm a Mormon, Ruby Author and a World-changer https://youtube.com/watch?v=bkh0gPf4Noc" by ComeUntoChrist.org on 2013-08-12.
 
                            
                        
                        
                         
                            
                        
                        
                        