Marmontel, in describing the society that frequented the salon of Mme. Geoffrin, mentions d'Alembert as "the gayest, the most animated, the most amusing in his gayety,"[25] and goes on to say that Marivaux, too, "would have liked to have this playful humour; but he had in his head an affair which constantly preoccupied him and gave him an anxious air. As he had acquired through his works the reputation of a keen and subtle wit, he considered himself obliged to constantly display that turn of mind, and was continually on the watch for ideas susceptible of contrast or analysis, in order to set them off against each other or to put them through a test. He would agree that such a thing was true up to a certain point or under a certain aspect; but there was always some restriction, some distinction to be made, which he alone had perceived. This labor of attention was hard for him, often painful for the others; but sometimes there resulted from it happy observations and brilliant hits. However, by the anxiety of his glances, one could see that he was uneasy about the success that he was having or might have. There never was, I think, a more delicate, more tender, and more apprehensive _amour-propre_; but, as he carefully considered that of others, they respected his, and merely pitied him for not being able to determine to be simple and natural."[26] Although this characterization by Marmontel may be true, too much must not be attributed to self-conceit, for Marivaux was rather timid and suspicious of himself at heart than self-conceited, and this very lack of confidence, this desire to please and to be thought well of, which caused him, at times, to emphasize before his friends his own worth, is a key to his nature, without which it would be difficult to understand him. This timidity of his explains his fear of being duped by the _ingenue_ of Limoges, as well as his mistrust of the man who made rough draughts of his letters, instead of writing them off-hand. That Marivaux was over- sensitive we must agree, for, although the testimony of his contemporaries may be somewhat biased by jealousy, it is too overwhelmingly unanimous to be gainsaid.[27] We cannot conclude, however, despite the testimony of Grimm, whose caustic tongue was none too chary of his friends, that intercourse with Marivaux was "epineux et insupportable," for, were it so, he never would have been so cordially welcomed into society as he was, for which, according to the abbe de La Porte, he possessed all the qualities required, "an exact honesty, a noble disinterestedness,... a pleasing candour, a charitable soul, a modesty without affectation and without pretense, an extremely sensitive courtesy, and the most scrupulous attention to avoid whatever might offend or displease."[28]