important contribution to the problems connected with the position of Judaism in a Gentile world. This was Jerusalem (1783; Eng. trans. 1838 and 1852). It is a forcible plea for freedom of conscience, described by Kant as "an irrefutable book". Mendelssohn wrote: Brothers, if you care for true piety, let us not feign agreement, where diversity is evidently the plan and purpose of Providence. None of us thinks and feels exactly like his fellow man: why do we wish to deceive each other with delusive words? Its basic thrust is that the state has no right to interfere with the religion of its citizens, Jews included. While it proclaims the mandatory character of Jewish law for all Jews (including, based on Mendelssohn's understanding of the New Testament, those converted to Christianity), it does not grant the rabbinate the right to punish Jews for deviating from it. He maintained that Judaism was less a "divine need, than a revealed life". Jerusalem concludes with the cry "Love truth, love peace!"—in a quote from Zacharias 8:19. Kant called this "the proclamation of a great reform, which, however, will be slow in manifestation and in progress, and which will affect not only your people but others as well." Mendelssohn asserted the pragmatic principle of the possible plurality of truths: that just as various nations need different constitutions—to one a monarchy, to another a republic, may be the most congenial to the national genius—so individuals may need different religions. The test of religion is its effect on conduct. This is the moral of Lessing's Nathan the Wise (Nathan der Weise), the hero of which is undoubtedly Mendelssohn, and in which the parable of the three rings is the epitome of the pragmatic position. To Mendelssohn his theory represented a strengthening bond to Judaism. But in the first part of the 19th century, the criticism of Jewish dogmas and traditions was associated with a firm adhesion to the older Jewish mode of living. Reason was applied to beliefs, the historic consciousness to life. Modern reform in Judaism has parted to some extent from this conception. In the view of the German writer Heinrich Heine, "as Luther had overthrown the Papacy, so Mendelssohn overthrew the Talmud; and he did so after the same fashion, namely, by rejecting tradition, by declaring the Bible to be the source of religion, and by translating the most important part of it.