The fruits of this extraordinary elaboration appear in every letter; but what is equally remarkable, is the art with which so many detached letters, written at distant intervals, and prompted by passing events, have been so arranged as to form an harmonious whole. The first three letters refer to Arnauld’s affair; the questions of grace are but slightly touched, the main object being to interest the reader in favor of the Jansenists, and excite his contempt and indignation against their opponents. After this prelude, the fourth letter serves as a transition to the following six, in which he takes up maxims of the casuists. In the eight concluding letters he resumes the grand objects of the work—the morals of the Jesuits and the question of grace. These three parts have each their peculiar style. The first is distinguished for lively dialogue and repartee. Jacobins, Molinists, and Jansenists are brought on the stage, and speak in character, while Pascal does little more than act as reporter. In the second part, he comes into personal contact with a casuistical doctor, and extracts from him, under the pretext of desiring information, some of the weakest and worst of his maxims. At the eleventh letter, Pascal throws off his disguise, and addressing himself directly to the whole order of the Jesuits, and to their Provincial by name, he pours out his whole soul in an impetuous and impassioned torrent of declamation. From beginning to end it is a well-sustained battle, in which the weapons are only changed in order to strike the harder.