xy

Source: Letter to his sister (Milan, 26 January 1770), from Contradictory Quotations, Longman Group Ltd., 1983. Rendered as "as the sows piss" in Letters of Wolfgang Amadeus Mozart, trans. Hans Mersmann, Dover Publications, 1972 (originally 1928)

From a letter now regarded as a forgery by Johann Friedrich Rochlitz http://www.aproposmozart.com/Stafford%20--%20Mozart%20and%20genius.rev.ref.pdf, http://www.mozartforum.com/Lore/article.php?id=108, http://www.mozartforum.com/Lore/article.php?id=106 <br class="br">Misattributed

in a letter to his father, 1782

Letter to Leopold Mozart (4 April 1787), from The Mozart-Da Ponte Operas by Andrew Steptoe [Oxford University Press, 1988, ISBN 0-198-16221-9], p. 84.

&quot;Sie wird das nothwendigste und härteste und die hauptsache in der Musique niemahlen bekommen, nämlich das tempo, weil sie sich vom jugend auf völlig befliessen hat, nicht auf den tact zu spiellen.&quot; <br class="br">Letter to Leopold Mozart (24 October 1777), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906) http://www.gutenberg.org/dirs/etext03/wamma11.txt

"Will mich Deutschland, mein geliebtes Vaterland, worauf ich (wie Sie wissen) stolz bin, nicht aufnehmen, so muß in Gottes Namen Frankreich oder England wieder um einen geschickten Deutschen mehr reich werden,- und das zur Schande der deutschen Nation."
Letter to Leopold Mozart (Vienna, 17 August 1782), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906).

Letter by Mozart, as quoted in a journal entry (12 December 1856) The Journal of Eugene Delacroix as translated by Walter Pach (1937), p. 521. The quote is not found in any authentic letter by Mozart.

Letter to Leopold Mozart, (Mannheim, 12 November 1778), from Mozart's Letters, Mozart's Life: Selected Letters, ed. Robert Spaethling [W.W. Norton, 2000, ISBN 0-393-04719-9], p. 193.

Spoken in Prague, 1787, to conductor Kucharz, who led the rehearsals for Don Giovanni, from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906).

Letter to Leopold Mozart (24 November 1781), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906).

Letter to Leopold Mozart (Paris, 29 April 1778), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906)

Spoken on his deathbed to his sister-in-law, Sophie Weber (5 December 1791), from Mozart: The Man and the Artist, as Revealed in his own Words by Friedrich Kerst, trans. Henry Edward Krehbiel (1906)
Variant: The taste of death is on my tongue, I feel something that is not from this world (Der Geschmack des Todes ist auf meiner Zunge, ich fühle etwas, das nicht von dieser Welt ist).

From a letter now regarded as a forgery by Johann Friedrich Rochlitz http://www.aproposmozart.com/Stafford%20--%20Mozart%20and%20genius.rev.ref.pdf, http://www.mozartforum.com/Lore/article.php?id=108, http://www.mozartforum.com/Lore/article.php?id=106 <br class="br">Misattributed <br class="br">Context: When I am, as it were, completely myself, entirely alone, and of good cheer — say traveling in a carriage, or walking after a good meal, or during the night when I cannot sleep — it is on such occasions that my ideas flow best, and most abundantly. Whence and how they come, I know not, nor can I force them.

Letter to Leopold Mozart (3 July 1778), from The letters of Wolfgang Amadeus Mozart, 1769-1791, translated, from the collection of Ludwig Nohl, by Lady [Grace] Wallace (Oxford University Press, 1865, digitized 2006) vol. I, # 107 (p. 218) http://books.google.com/books?vid=0SGwLiCNxu7qZ5ch&amp;id=KEgBAAAAQAAJ&amp;printsec=titlepage&amp;dq=%22The+letters+of+Wolfgang+Amadeus+Mozart,+1769-1791%22#PRA1-PA218,M1

Letter to Leopold Mozart (11 September 1778), from Wolfgang Amadé Mozart by Georg Knepler (1991), trans. J. Bradford Robinson [Cambridge University Press, 1994, ], p. 12.
Variant: A fellow of mediocre talent will remain a mediocrity, whether he travels or not; but one of superior talent (which without impiety I cannot deny that I possess) will go to seed if he always remains in the same place.