But suddenly in the midst of her sulks and grumblings, she would become gay, noisy, exaggerated: there was no more dealing with her gaiety than with her moroseness: she would burst out laughing for no reason and seem as though she were never going to stop: she would rush across the fields, play mad tricks and childish pranks, take a delight in doing silly things, in mixing with the earth, and dirty things, and the beasts, and the spiders, and worms, in teasing them, and hurting them, and making them eat each other: the cats eat the birds, the fowls the worms, the ants the spiders, not from any wickedness, or perhaps from an altogether unconscious instinct for evil, from curiosity, or from having nothing better to do. She seemed to be driven always to say stupid things, to repeat senseless words again and again, to irritate Christophe, to exasperate him, set his nerves on edge, and make him almost beside himself. And her coquetry as soon as anybody--no matter who--appeared on the road!... Then she would talk excitedly, laugh noisily, make faces, draw attention to herself: she would assume an affected mincing gait. Christophe would have a horrible presentiment that she was going to plunge into serious discussion.--And, indeed, she would do so. She would become sentimental, uncontrolledly, just as she did everything: she would unbosom herself in a loud voice. Christophe would suffer and long to beat her. Least of all could he forgive her her lack of sincerity. He did not yet know that sincerity is a gift as rare as intelligence or beauty and that it cannot justly be expected of everybody. He could not bear a lie: and Ada gave him lies in full measure. She was always lying, quite calmly, in spite of evidence to the contrary. She had that astounding faculty for forgetting what is displeasing to them--or even what has been pleasing to them--which those women possess who live from moment to moment.