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                                        To Mme. Streicher, in 1817, or 1818, after having dismissed an otherwise good housekeeper because she had told a falsehood to spare his feelings. in  Beethoven: the Man and the Artist, as Revealed in his own Words http://www.fullbooks.com/Beethoven-the-Man-and-the-Artist-as-Revealed2.html by Ludwig van Beethoven, edited by Friedrich Kerst 
Attributed 
Variant: Anyone who tells a lie has not a pure heart, and cannot make a good soup.
                                    
 
                             
                             
                             
                             
                             
                            