Pius IX Quotes
If anyone says that it is possible that at some time, given the advancement of knowledge, a sense may be assigned to the dogmas propounded by the Church which is different from that which the Church has understood and understands: let him be anathema.
First Vatican Council. Dei Filius. 24 Apr. 1870, ch. 4, canon 3.
While the Visigoths had some very advanced legal principles, this law, quoted in its entirety is typical of the nations that were part of the Catholic world. The church and its doctrines were immune from any possible criticism, explicit or implicit. This is the most formalized and sophisticated compendium of laws of the so-called “barbaric peoples” of Europe. The compilation was in many ways a documentation of the traditional laws of the Visigoths that had evolved over hundreds of years.
He was being pressured to recant some of his astronomical findings and demonstrations—especially the statement that the Earth revolved around the sun. (The church doctrine had it the other way around.) Here he seeks sympathy with his plight.
Pius IX was head of the Catholic Church from 1846 to 1878, the longest papal reign. After starting as a liberal he reversed positions and strongly condemned liberalism. He was notable for convoking the First Vatican Council in 1868 and for permanently losing papal control of the Papal States in 1870 to the Kingdom of Italy. He refused to leave Vatican City, declaring himself a "prisoner of the Vatican". His diplomacy mixes many failures with some successes such as Austria-Hungary, Portugal, Spain, Canada, Tuscany, Ecuador, Venezuela, Honduras, El Salvador, and Haiti.