Aristotle was an ancient Greek philosopher who set up a rival academy, The Lyceum, to challenge Plato’s Academy. Aristotle wrote influential works in a range of disciplines - politics, physics, ethics, economics - and had a profound impact on Western thought.
Ghislanzoni was a writer, especially of libretti for opera. He was inspired by the liberal ideas of Mazzini during the 1848 revolution. He wrote scores of opera libretti in particular Verdi’s Aida (he also worked on The Force of Destiny and Don Carlos).
Heinrich Rommen was a Catholic German lawyer who practised in Germany during the Weimar Republic before fleeing to the United States in 1938. He taught in Germany and England before concluding his distinguished scholarly career at Georgetown University.