 Before the war was over, at the end of the academic year of 1943/44, Pirotta – now almost fifty years of age – was relieved of the post of Rector at Rabat, Malta.During these years he assiduously worked on his next publication, which eventually had to be his last.This was his fourth exposition, the one on Aquinas’ eight books of commentaries on Aristotle’s De Physico Auditu (Physics).