Widely attributed to Franklin on the Internet, sometimes without the second sentence. It is not found in any of his known writings, and the word "lunch" is not known to have appeared anywhere in English literature until the 1820s, decades after his death. The phrasing itself has a very modern tone and the second sentence especially might not even be as old as the internet. Some of these observations are made in response to a query at Google Answers.  http://answers.google.com/answers/threadview?id=389308
The earliest known similar statements are: 
A democracy is two wolves and a lamb voting on what to have for lunch. 
Gary Strand, Usenet group sci.environment, 23 April 1990.  http://groups.google.com/group/sci.environment/msg/057b1c6389f4776f?dmode=source 
Democracy is not freedom. Democracy is two wolves and a lamb voting on what to eat for lunch. Freedom comes from the recognition of certain rights which may not be taken, not even by a 99% vote. 
Marvin Simkin, "Individual Rights", Los Angeles Times, 12 January 1992.  http://articles.latimes.com/1992-01-12/local/me-358_1_jail-tax-individual-rights-san-diego 
Democracy must be something more than two wolves and a sheep voting on what to have for dinner. 
James Bovard, Lost Rights: The Destruction of American Liberty (1994), ISBN 0312123337, p. 333. 
Also cited as by Bovard in the  Sacramento Bee (1994) http://www.giraffe.com/gr_wolves.html 
Misattributed 
Variant: Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.
                                    
“Have you seen "The Silence of the Lambs"? What were the lambs doing? They were keeping silent. I wish you doing it as well.”
            Widziałaś film "Milczenie owiec"? 
Co robiły owce? Milczały. Czego i tobie życzę. 
To Idol contestants
        
Original
Widziałaś film Milczenie owiec? Co robiły owce? Milczały. Czego i tobie życzę.
                        
                            Idol 
Variant: Widziałaś film "Milczenie owiec"? Co robiły owce? Milczały. Czego i tobie życzę.
                        
                    
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Kuba Wojewódzki 9
Polish journalist 1963Related quotes
“Though lions to their enemies they were lambs to their friends.”
                                        
                                        The infernal Marriage, part 2, Chapter 4 (1834). 
Books
                                    
                                
                                    “I do love thee as my lambs
Are belovėd of their dams”
                                
                                
                                
                                
                            
Diaphenia
“Well, you certainly are the most wonderfully woolly baa-lamb that ever stepped.”
Source: The Code of the Woosters
“To the elderly ones, you are retired but don't be tired. Just keep doing what you were doing.”
Source: https://www.youtube.com/0y3EdD7sKow Prof in an interview on words to the young and elderly.
                                
                                    “I wish you were here
I wish you were here
To see what I could see
To hear
And I wish you were here”
                                
                                
                                
                                
                            
                                        
                                        "Stranger in a Strange Land" 
Lyrics, October (1981)
                                    
                                        
                                        Edward Cullen and Bella Swan, p. 274 
Twilight series, Twilight (2005)
                                    
                                        
                                        The Sound of Silence 
Song lyrics, Wednesday Morning, 3 A.M. (1964)