 During his working life, Suárez was both remarkably prolific and industrious (according to Fichter 1940: 327, he wrote about 21 million words, more than twice the output of Thomas Aquinas), not only writing but equally involving himself in all manner of editorial matters. Given his eminence and popularity, almost as soon as Suárez published a book, unauthorized copies were printed in places such as Paris, Vienna, Cologne, Geneva, Lyons, and Mainz.