But, often enough, the things that he did not know, that he dreaded, now, to learn, it was Odette herself who, spontaneously and without thought of what she did, revealed them to him; for the gap which her vices made between her actual life and the comparatively innocent life which Swann had believed, and often still believed his mistress to lead, was far wider than she knew. A vicious person, always affecting the same air of virtue before people whom he is anxious to keep from having any suspicion of his vices, has no register, no gauge at hand from which he may ascertain how far those vices (their continuous growth being imperceptible by himself) have gradually segregated him from the normal ways of life.