The Pontifical Gregorian University in Rome has a philosophy department that currently demands some concept of purpose
in Evolutionism.1 Purpose, or final causality, has always been a part of the explanation of reality by the Neo-Scholastic
philosophers.2 The principle of finality or purpose applies to every agent, and thus applies to Evolutionism. Finality
is the teaching of St. Thomas and our own experience tells us "that everything that is produced though the will of an agent
is directed to an end by the agent" (Aquinas Summa Contra Gentiles 3. 1) and "Other things that lack intellect do not
direct themselves to their goal, but are directed by another" (Aquinas Summa Contra Gentiles, 3. 1).3 In
fact, St. Thomas describes in various ways that "every agent acts for a purpose" (omne agens agit propter finem) on
several occasions: Aquinas Summa Contra Gentiles 3. 1; Aquinas Summa Contra Gentiles 3. 2; Aquinas Summa
Theologiae, 2-2. 1. 2.
This need for purpose or finality is actually the central theme of the class presentation at the Gregorian University as
illustrated in the current printed student notes. Finality of evolution also finds a prominent place in the title, Evoluzione
e FinalitB, of the book by Maria Teresa La Vecchia, who teaches the course
at the Gregorian University.