This more heroic resolution was rewarded by the gain of two battles, in which scarcely a Prussian fell, and the defeat of the enemy was complete. Frederic wrote triumphantly to his friend to announce his victories. [Sidenote: 1758. Ætat. 64.] Soon after, Voltaire was applied to by cardinal Tencin, who had refused to receive him at Lyons, to forward letters which were to negotiate a peace. The wily philosopher consented: he was aware that the cardinal would fail, and he was malicious enough to wish to enjoy the sight of his mortification. The cardinal did fail, and more disgracefully than he expected; and the disappointment cost him his life. "I have never been able to understand," Voltaire observes, "how it is that people are killed by vexation, and how ministers and cardinals, whose hearts are so hard, retain sufficient sensibility to die from the effects of a disappointment. It was my design to mortify and laugh at, not to kill him." Voltaire had secured his safety, and could give himself up to that ardent love of study, that restless aspiration for fame, that eager endeavour to overthrow the superstitions (and, unfortunately, more than the superstitions, the religion) of Europe, and that more noble resolution to oppose all abuses, and to be the refuge and support of the oppressed, which animated his soul through a long life chequered by physical suffering. In his retreat of Les Delices, he brought out his historical work on the "Manners and Spirit of Nations." He composed several of his best tragedies; he wrote "Candide," a book rendered illustrious by its wit and penetrating spirit of observation, in spite of its grossness and implied impiety, which are the reigning blemishes of Voltaire's writings. As usual, also, he erected a theatre in his house. Added to his habitual love for theatrical amusements, he hoped to impart a taste for them to the Genevese, and so to weaken that ascetic spirit of repulsion of intellectual pleasure to which, whether enjoined by monks or recommended by Calvin, he was hostile.