Covering paragraph 13 we discuss the modernists' love for "evolving dogma" and contrast this with the proper understanding of "development of doctrine." Evolving dogma is really code for "changing the beliefs of the Church to suit whims of the modernists." "Development of Doctrine" is the "growth in the Church's understanding of the truths of divine revelation" (Fr. John Hardon.)

Pascendi: http://www.papalencyclicals.net/Pius10/p10pasce.htm