Having conceived a liking for mathematics, astronomy, and philosophy, Menashe decided to go to Berlin to devote himself to these studies, but on his way to the German capital, while temporarily sojourning in Koenigsberg, he was halted by his countrymen, who visited Prussia on business, and was cowed by all kinds of threats into returning home. By persistent private study, this native of a Russian out-of-the-way townlet managed to acquire a fair amount of general culture, which, with all its limitations, yielded a rich literary harvest. In 1807 he made his _debut_ with the treatise _Pesher Dabar_ ("The Solution of the Problem"), [1] in which he gave vent to his grief over the fact that the spiritual leaders of the Jewish people kept aloof from concrete reality and living knowledge. While the book was passing through the press in Vilna, Lithuanian fanatics threatened the author with severe reprisals. Their threats failed to intimidate him. When the book appeared, many rabbis threw it into the flames, and made every possible effort to arrest its circulation, with the result that the voice of the "heretic" was stifled. [Footnote 1: Literally, "The Interpretation of a Thing," from Eccl. 8.1.] Ten years later, while residing temporarily in Volhynia, the hot-bed of hasidism, Menashe began to print his religio-philosophic treatise _Alfe Menassheh_ ("The Teachings of Manasseh"). [1] But the first proof-sheets sufficed to impress the printer with the "heretical" character of the book, and he threw them together with the whole manuscript into the fire. The hapless author managed with difficulty to restore the text of his "executed" work, and published it at Vilna in 1822. Here the rabbinical censorship pounced upon him. The book had not yet left the press, when the rabbi of Vilna, Saul Katzenellenbogen, learned that in one passage the writer deduced from a verse in Deuteronomy (17.9) the right of the "judges" or spiritual leaders of each generation to modify many religious laws and customs in accordance with the requirements of the time. The rabbi gave our author fair warning that, unless this heretical argument was withdrawn, he would have the book burned publicly in the synagogue yard. Menashe was forced to submit, and, contrary to his conviction, weakened his heterodox argument by a number of circumlocutions. [Footnote 1: With a clever allusion to the Hebrew text of Deut. 33.17.] These persecutions, however, did not smother the fire of protest in the breast of the excommunicated rural philosopher. In the last years of his life he published two pamphlets, [1] in which he severely lashed the shortcomings of Jewish life, the early marriages, the one-sided school training, the repugnance to living knowledge and physical labor. However, the champions of orthodoxy took good care to prevent these books from reaching the masses. Exhausted by his fruitless struggle, Menashe died, unappreciated and almost unnoticed by his contemporaries.