Preface (p. xv; the quote is from Alice in Wonderland) 
Irreligion: A Mathematician Explains Why the Arguments for God Just Don’t Add Up (2008)
                                    
“When I use a word, it means just what I choose it to mean—neither more, nor less.”
Source: Through the Looking-Glass, and What Alice Found There
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Lewis Carroll 241
English writer, logician, Anglican deacon and photographer 1832–1898Related quotes
Language Education in a Knowledge Context (1980)
                                
                                    “Inconceivable!"
"You keep using that word. I do not think it means what you think it means.”
                                
                                
                                
                                
                            
Source: The Princess Bride
“You Keep Using the Word Help. I Do Not Think It Means What You Think It Means”
Source: The Hammer of Thor