While not a woman of remarkable beauty, she was the personification of reason and virtue; her unassuming frankness, exquisite tact, and exceptional reserve discouraged all advances on the part of those gallants who frequented every mansion and were always prepared to lay siege to the heart of any fair woman. Her wide culture, versatility, modesty, goodness, fidelity, and disinterestedness caused her to be universally sought. Mlle. de Scudéry, in her novel _Cyrus_, leaves a fine portrait of her:
"The spirit and soul of this marvellous person surpass by far her beauty: the first has no limits in its extent and the other has no equal in its generosity, goodness, justice, and purity. The intellect of Cléomire (Mme. de Rambouillet) is not like that of those whose minds have no brilliancy except that which nature has given them, for she has cultivated it carefully, and I think I can say that there are no _belles connaissances_ that she has not acquired. She knows various languages, and is ignorant of hardly anything that is worth knowing; but she knows it all without making a display of knowing it; and one would say, in hearing her talk, 'she is so modest that she speaks admirably of things, through simple common sense only'; on the contrary, she is versed in all things; the most advanced sciences are not beyond her, and she is perfectly acquainted with the most difficult arts. Never has any person possessed such a delicate knowledge as hers of fine works of prose and poetry; she judges them, however, with wonderful moderation, never abandoning _la bienséance_ (the seemliness) of her sex, though she is far above it. In the whole court, there is not a person with any spirit and virtue that does not go to her house. Nothing is considered beautiful if it does not have her approval; no stranger ever comes who does not desire to see Cléomire and do her homage, and there are no excellent artisans who do not wish to have the glory of her approbation of their works. All people who write in Phénicie have sung her praises; and she possesses the esteem of everyone to such a marvellous degree that there is no one who has ever seen her who has not said thousands of favorable things about her--who has not been charmed likewise by her beauty, _esprit_, sweetness, and generosity."