Another edition was prepared in 1862 which returned the original text except for a few vulgar proverbs, but it could not be published due to the Lithuanian press ban. Daukantas prepared five other books for school students, but only two were published during his lifetime. He published a translation of fables by Phaedrus (he had them first translated in 1824) and a translation of biographies from "De viris illustribus" by Cornelius Nepos, both in 1846. He published the fables with hopes of awakening an interest in Lithuanian folk tales. He twice translated and reworked "Robinson der Jüngere" by Joachim Heinrich Campe (inspired by "Robinson Crusoe") – first in 1846 as 397-page "Rubinaičio Peliūzės gyvenimas" (The Life of Rubinaitis Peliūžė; first published in 1984) and then in 1855 as 495-page "Palangos Petris" (Petris of Palanga; manuscript lost). He adapted the text by changing names to Lithuanian names, geographic names to locations in Lithuania, aboriginal gods to pagan Lithuanian gods, and borrowing historical details from the Couronian colonization of the Americas, but otherwise remained faithful to Campe's text. He also translated a work by the Roman historian Justin. Daukantas was passionate about the Lithuanian language and its purity. He was concerned that religious books, by far the most popular Lithuanian books at the time, were often translated by foreigners with poor knowledge of Lithuanian. As such, prayer book language was full of loanwords and barbarisms from various Slavic languages. Therefore, in 1843, he undertook to prepare a prayer book – a rare feat for a layperson – in correct Lithuanian. He took prayers from various popular books of the time and submitted his manuscript to bishop . The manuscript received the approval from the diocese only in 1847, but for some unknown reason was not published. Daukantas was the first to collect examples of all genres (songs, proverbs, fairy-tales, etc.) of Lithuanian folklore. He added Lithuanian proverbs to several of his works, but earlier works used proverbs already published by other authors. In total, he had prepared 932 proverbs for publication. Around 1834–1835, Daukantas started one of the first collections of Lithuanian fairy tales, fables, humorous stories.