seeking for what cannot be found, this persistent knocking at gates which, when opened, but reveal others yet to be passed, constitutes an element which no adequate theory of religion can overlook. But of this we find nothing in Lessing. With him all is sunny, serene, and pagan. Not the dim aisle of a vast cathedral, but the symmetrical portico of an antique temple, is the worshipping-place into which he would lead us. But if Lessing's theology must be considered imperfect, it is none the less admirable as far as it goes. With its peculiar doctrines of love and faith, it teaches a morality far higher than any that Puritanism ever dreamed of. And with its theory of development it cuts away every possible logical basis for intolerance. It is this theology to which Lessing has given concrete expression in his immortal poem of "Nathan." The central idea of "Nathan" was suggested to Lessing by Boccaccio's story of "The Three Rings," which is supposed to have had a Jewish origin. Saladin, pretending to be inspired by a sudden, imperious whim, such as is "not unbecoming in a Sultan," demands that Nathan shall answer him on the spur of the moment which of the three great religions then known--Judaism, Mohammedanism, Christianity--is adjudged by reason to be the true one. For a moment the philosopher is in a quandary. If he does not pronounce in favour of his own religion, Judaism, he stultifies himself; but if he does not award the precedence to Mohammedanism, he will apparently insult his sovereign. With true Oriental tact he escapes from the dilemma by means of a parable. There was once a man, says Nathan, who possessed a ring of inestimable value. Not only was the stone which it contained incomparably fine, but it possessed the marvellous property of rendering its owner agreeable both to God and to men. The old man bequeathed this ring to that one of his sons whom he loved the most; and the son, in turn, made a similar disposition of it. So that, passing from hand to hand, the ring finally came into the possession of a father who loved his three sons equally well. Unto which one should he leave it? To get rid of the perplexity, he had two other rings made by a jeweller, exactly like the original, and to each of his three sons he bequeathed one. Each then thinking that he had obtained the true talisman, they began violently to quarrel, and after long contention agreed to carry their dispute before the judge. But the judge said: "Quarrelsome fellows! You are all three of you cheated cheats. Your three rings are alike counterfeit. For the genuine ring is lost, and to conceal the loss, your father had made these three substitutes." At this unexpected denouement the Sultan breaks out in exclamations of delight; and it is interesting to learn that when the play was brought upon the stage at Constantinople a few years ago, the Turkish audience was similarly affected. There is in the story that quiet, stealthy