This author of Summa Contra Gentiles used the "argument of degree" and "argument of the first mover" in his quinque viae to prove the existence of God.
In response to Siger of Brabant, this man penned "On the Unicity of Intellect," in which he criticized Averroës, whom he called "the Commentator" in another work. In a work written to Pope Urban IV, this man put himself in opposition to the Eastern Church in Contra Errores Graecorum. This scholar described his idea of the "beatific vision" in one work, in which he also divides the spirit into two parts: rational and irrational, in opposition to Plato. This author of Summa Contra Gentiles used the "argument of degree" and "argument of the first mover" in his quinque viae to prove the existence of God. For 10 points, name this medieval Italian theologian, writer of Summa Theologica.
In response to Siger of Brabant, this man penned "On the Unicity of Intellect," in which he criticized Averroës, whom he called "the Commentator" in another work.
Thomas Aquinas [or Thomas of Aquino; or Tommaso d'Aquino; prompt on "Thomas"; prompt on "Doctor Angelicus"; prompt on "Doctor Communis"; prompt on "Doctor Universalis"]