Voltaire was, at this time, about forty years of age. His renown as a man of genius already filled Europe. He was residing, on terms of the closest intimacy, with Madame Du Châtelet, who had separated from her husband. With congenial tastes and ample wealth they occupied the chateau of Cirey, delightfully situated in a quiet valley in Champagne, and which they had rendered, as Madame testifies, a perfect Eden on earth. It is not always, in the divine government, that sentence against an evil work is “executed speedily.” Madame Du Châtelet, renowned in the writings of Voltaire as the “divine Emilie,” was graceful, beautiful, fascinating. Her conversational powers were remarkable, and she had written several treatises upon subjects connected with the pure sciences, which had given her much deserved celebrity. Still it is evident that the serpent was in this Eden. Carlyle writes: “An ardent, aerial, gracefully predominant, and, in the end, somewhat termagant female, this divine Emilie. Her temper, radiant rather than bland, was none of the patientest on occasion. Nor was M. De Voltaire the least of a Job if you came athwart him in a wrong way. I have heard that their domestic symphony was liable to furious flaws; that plates, in presence of the lackeys, actual crockery or metal, have been known to fly from end to end of the dinner-table; nay, they mention ‘knives,’ though only in the way of oratorical action; and Voltaire has been heard to exclaim, ‘Don’t fix those haggard, sidelong eyes on me in that way!’--mere shrillness of pale rage presiding over the scene.” Voltaire had already written the epic poem the _Henriade_, the history of _Charles XII._, and several tragedies. The first letter from Frederick to Voltaire was dated August 8th, 1736. The following extracts will show the spirit of this flattering epistle: “MONSIEUR,--Although I have not the satisfaction of knowing you personally, you are not the less known to me through your works. They are treasures of the mind, if I may so express myself; and they reveal to the reader new beauties at every perusal. I think I have recognized in them the character of their ingenious author, who does honor to our age and to human nature. If ever the dispute on the comparative merits of the moderns and the ancients should be revived, the modern great men will owe it to you, and to you only, that the scale is turned in their favor. With the excellent quality of poet you join innumerable others more or less related to it. “Monsieur, there is nothing I wish so much as to possess all your writings. Pray do communicate them to me without reserve. If there be among your manuscripts any that you wish to conceal from the eyes of the public, I engage to keep them in profoundest secrecy. “I should think myself richer in the possession of your works than in that of all the transient goods of fortune.