The new ideas were none the less revolutionary of social life. The salon, that eminently French institution, soon felt their power. The charming irresponsible gaiety and frivolity of the old _régime_ gave place to more serious preoccupation with political movements. The fusing power of Rousseau's genius had melted all hearts; the solvent wit of Voltaire and the precise science of the Encyclopedists were a potent force even among the courtiers themselves. The centre of social life shifted from Versailles to Paris and the salons gained what the court lost. Fine ladies had the latest pamphlet of Siéyès read to them at their toilette, and maids caught up the new phrases from their mistresses' lips. Did a young gallant enter a salon excusing himself for being late by saying, "I have just been proposing a motion at the club," every fair eye sparkled with interest. A deputy was a social lion, and a box for the National Assembly exchanged for one at the opera at a premium of six livres. Speeches were rehearsed at the salons and action determined. Chief of the hostesses was Madame[165] Necker: at her crowded receptions might be seen Abbé Siéyès, the architect of Constitutions; Condorcet, the philosopher; Talleyrand, the patriotic bishop; Madame de Stäel, with her strong, coarse face and masculine voice and gestures. More intimate were the Tuesday suppers at which a dozen chosen guests held earnest communion. Madame de Beauharnais was noted for her excellent table, and her Tuesday and Thursday dinners: at her rooms the masters of literature and music had been wont to meet. Now came Buffon the naturalist; Bailly of Tennis Court oath fame; Clootz, the friend of humanity. The widow of Helvetius, with her many memories of Franklin, welcomed Volney, author of the _Ruins of Empires_, and Chamfort, the candid critic of Academicians. At the salon of Madame Pancroute, Barrère, the glib orator of the Revolution, was the chief figure. Julie Talma was famed for her literary and artistic circle. Here Marie Joseph Chenier, the revolutionary dramatic poet of the Comédie Française, declaimed his couplets. Here came Vergniaud, the eloquent chief of the ill-fated Gironde; Greuze, the painter; Roland, the stern and minatory minister, who spoke bitter words, composed by his wife, to the king; Lavoisier, the chemist, who begged that the axe might be stayed while he completed some experiments, and was told that the Republic had no need of chemists. Madame du Deffand, whose hotel in the Rue des Quatre Fils still exists, welcomed Voltaire, D'Alembert, Montesquieu and the Encyclopedists.