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                                        April 15, 1778 
Life of Samuel Johnson (1791), Vol III
                                    
            Dr. Johnson in conversation, April 15, 1778, reported in James Boswell, The Life of Samuel Johnson, LL.D. (Oxford: Oxford University Press, 1791) p. 948. 
Criticism
        
“Pleasure of itself is not a vice.”
                                        
                                        April 15, 1778 
Life of Samuel Johnson (1791), Vol III
                                    
                                        
                                        The New York Herald-Tribune Magazine (6 March 1938) 
1930s
                                    
“When the brain's pleasure circuits are 'on,' the violence circuits are 'off,' and vice versa.”
                                        
                                        "Body Pleasure and the Origins of Violence" (1975) 
Context: Laboratory experiments show that... When the brain's pleasure circuits are 'on,' the violence circuits are 'off,' and vice versa.
                                    
“Pleasure can only be experienced after going through pain and vice versa.”
                                
                                    “Virtue itself turns vice, being misapplied,
And vice sometime by action dignified.”
                                
                                
                                
                                
                            
Source: Romeo and Juliet
“Any virtue systematically applied becomes a vice. Morality is attention, not system.”
                                        
                                        #398 
Vectors: Aphorisms and Ten Second Essays (2001)
                                    
“Once writing has become your major vice and greatest pleasure only death can stop it.”
Paris Review interview (1958)
 
                            
                        
                        
                         
                            
                        
                        
                         
                            
                        
                        
                        