Her energy did not leave her because of this disability. The letter-writers of the period describe her extraordinary activity. She had a great love of pretty and elaborate practical jokes which were in the taste of the time. Hers, however, were distinguished by the fact that they were never indecent and never ill-natured. But when an idea occurred to Madame de Rambouillet, she rested not until the wild scheme was accomplished. Voiture and Tallemant are full of instances of her fertility. One instance out of many was the passion which she expended in making a cascade in the park at Rambouillet, to startle a party of guests. The water had to be brought up from the little tarn of Montorgueil, and the Marquise superintended every spade and every pipe. Carried on by her enthusiastic presence, a team of workmen laboured night and day to complete the prodigious plaything, conducting their ingenious hydraulics by the flare of torches. I could fill pages with the proofs of her gaiety, her ingenuity, the amazing freshness and vivacity of her mind, but the reader can turn to the original sources for them. It may be suggested that, while the various independent authorities really confirm the legend in its outline, when they tell the same story, it will generally be found that Tallemant tells it more naturally and more exactly than Segrais or Voiture. It is also to be remembered that it was Tallemant who observed longest and most closely, and brought least suspicion of vanity to bear on his relation. There is a phrase buried somewhere in the vast tissue of the _Historiettes_ which deserves to be better known. Speaking incidentally of the Marquise de Rambouillet, Tallemant betrays that she was really the source of all his inspiration: "c'est d'elle que je tiens la plus grande et la meilleure partie de ce que j'ai escrit et que j'escriray dans ce livre." This gives his statements their peculiar authority with regard to that Blue Room, which he elsewhere calls "le rendez-vous de ce qu'il y avait de plus galant à la Cour, et de plus joly parmy les beaux-esprits du siècle." He quite frequently introduces an anecdote with the words "J'ay ouy dire à Mme. de Rambouillet."