Neumann found the lectures in Prague disagreeable because of the Febronian views of his professors, which Neumann regarded as heterodox. The lector in dogmatic theology, Jerome Zeidler, denied papal infallibility, which Neumann supported in a treatise he sent on the question to an inquiring friend in Budweis, though there is no evidence Neumann openly opposed Zeidler in class. Neumann said of Zeidler that he enjoyed too little reputation with the students to do them much harm. Neumann privately studied the "Roman Catechism", the works of St. Robert Bellarmine and St. Peter Canisius, and the works of the Church Fathers, especially St. Augustine of Hippo and St. Gregory the Great. Neumann's grades at the end of the 1833–1834 academic year were once again very high, though not as high as at Budweis. In his final year at Prague, Neumann studied pastoral theology, homiletics, pedagogy, and catechetics. His grades, while good, were the lowest of his four years studying theology. By this time, Neumann was able to use German, Czech, French, English, Spanish, and Italian, as well as Latin and Greek.