theological tests at the universities, tests which indeed did “reward and punish” doctrines. Mendelssohn goes on: “Let everyone who does not disturb public happiness, who is obedient to the civil government, who acts righteously towards his fellow-man, be allowed to speak as he thinks, to pray to God after his own fashion, or after the fashion of his fathers, and to seek eternal salvation where he thinks he may find it.” No one, unless it be that earlier Jewish philosopher Spinoza, had ever put the case for toleration so cogently. Whether Mendelssohn’s own principles are consistent with his further conclusion that once a Jew always a Jew, will ever be doubted. The Talmud (Sanhedrin 44a) had said: An Israelite, though he sin, remains an Israelite. Mendelssohn rather said: An Israelite has no right to sin. True, the world need not accept Judaism, but the Jew may never reject it. “I do not see,” cries Mendelssohn, “how those who were born in the house of Jacob can, in any conscientious manner, disencumber themselves of the law. We are allowed to think about the law, to inquire into its spirit ... but all our fine reasoning cannot exonerate us from the strict obedience we owe to it.” I am not now criticising Mendelssohn. I am trying to expound him. To live under the law of the State and at the same time to remain loyal to the law of Judaism is hard. But Mendelssohn went on: _Bear both burdens_. That assuredly is a counsel which should be inscribed in golden letters over the portal of Judaism now, even though we may interpret the burdens differently in our different circumstances. Mendelssohn’s masterpiece includes much else. But what precedes ought to be enough to whet readers’ appetites for the whole meal. On an occasion when I had a long talk with William James, I spoke to him of Mendelssohn, and he admitted that his own Pragmatic theories were paralleled by the _Jerusalem_. He promised to write on the subject, but death claimed him all too soon. Whether we agree with Mendelssohn or not, let us at least agree in appreciation of his genius. What he did, and what we do not do, is to face unflinchingly the discussion of fundamentals. Reading Mendelssohn is to breathe the fresh air. But there’s the rub! _Read_ Mendelssohn? How, if we know no German? It is deplorable that the _Jerusalem_ is no longer accessible in English. I say no longer, because once it was accessible. And not once only, but twice.