 As a theologian, Symeon frequently quoted the Vulgate, St. Jerome, St. Augustine, and other Latin authorities, which was perceived by his detractors as a deliberate attempt to westernize Orthodox religious thought.In fact, his faithful disciple Sylvester Medvedev was later condemned for having succumbed to Catholicism.Symeon was also a dramatist; the comedy "Action of the Prodigal Son" and the tragedy "On Nebuchadnezzar the King" rank among the first dramatic works in the Russian language.