“To the designer of programming languages, I say: unless you can support the paradigms I use when I program, or at least support my extending your language into one that does support my programming methods, I don't need your shiny new languages. […] To persuade me of the merit of your language, you must show me how to construct programs in it.”
The Paradigms of Programming (1979)
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Robert Floyd 9
American computer scientist 1936–2001Related quotes

“… 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

“If you want to program in C, program in C. It's a nice language. I use it occasionally…”
[7577@jpl-devvax.JPL.NASA.GOV, 1990]
Usenet postings, 1990

Itconversations.com http://itc.conversationsnetwork.org/shows/detail58.html quoted in www.dasgenie.com http://www.dasgenie.com/scrap/archives/000060.html

“My programming language was solder.”
On his early computers, from a talk "When I Were A Lad, We Used To Dream of 64K" at the 63rd World Science Fiction Convention in Glasgow, Scotland, (August 2005)
General sources

"Hackers and Painters" http://www.paulgraham.com/hp.html, May 2003

§5.4
Notation as a Tool of Thought (1979)

http://www.youtube.com/watch?v=8c0_Lzb1CJw#t=01h19m00s
"The IBM System/360 Revolution"
recorded by the Computer History Museum
April 7, 2004.
Source: Assigning Meanings to Programs http://www.cs.virginia.edu/~weimer/2007-615/reading/FloydMeaning.pdf (1967), pp. 19–20.