The libretto incorporates disparate texts by Hesiod, Hölderlin, and Benjamin (mostly logistically inaudible during performance due to Nono's characteristic deconstruction), which explore the origin and evolution of humanity, as compiled and expanded by Cacciari. In Nono's timeless and visionary context, music and sound predominate over the image and the written word to form new dimensions of meaning and "new possibilities" for listening. In 1985, Nono came across this aphorism ("Travellers, there are no trails – all there is, is travelling") on a wall of the Franciscan monastery near Toledo, Spain, and it played an important role in the rest of his compositions (; ; ). As Andrew Clements writes about this aphorism in "The Guardian", "It seemed to the composer the perfect expression of his own creative development, and in the last three years of his life he composed a trilogy of works whose titles all derive from that inscription." Nono's last pieces, such as "Caminantes... Ayacucho" (1986–87), inspired by a region in southern Peru that experiences extreme poverty and social unrest, "La lontananza nostalgica utopica futura" (1988–89), and ""Hay que caminar" soñando" (1989), offer comment on the composer's lifelong quest for political renewal and social justice. Nono died in Venice in 1990. After his funeral, the German composer Dieter Schnebel remarked that he "was a very great man" —a sentiment widely shared by those who knew him, and those who have come to admire his music . Nono is buried on the Isola di San Michele, alongside other artists like Stravinsky, Diaghilev, Zoran Mušič and Ezra Pound. Perhaps the three most important collections of Nono's writings on music, art, and politics ("Texte: Studien zu seiner Musik" (1975), "Ecrits" (1993), and "Scritti e colloqui" (2001)), as well as the texts collected in , have yet to be translated into English. Other admirers include architect Daniel Libeskind and novelist Umberto Eco ("Das Nonoprojekt"), for Nono totally reconstructed music and engaged in the most fundamental issues with regards to its expressivity. The Luigi Nono Archives were established in 1993, through the efforts of Nuria Schoenberg Nono, for the purpose of housing and conserving the Luigi Nono legacy.