As the critical faculty, on the universal application of which he prided himself, was, in reality, completely lacking, that refinement of good breeding which consists in assuring some one whom you are obliging in any way, without expecting to be believed, that it is really yourself that is obliged to him, was wasted on Cottard, who took everything that he heard in its literal sense. However blind she may have been to his faults, Mme. Verdurin was genuinely annoyed, though she still continued to regard him as brilliantly clever, when, after she had invited him to see and hear Sarah Bernhardt from a stage box, and had said politely: "It is very good of you to have come, Doctor, especially as I'm sure you must often have heard Sarah Bernhardt; and besides, I'm afraid we're rather too near the stage," the Doctor, who had come into the box with a smile which waited before settling upon or vanishing from his face until some one in authority should enlighten him as to the merits of the spectacle, replied: "To be sure, we are far too near the stage, and one is getting sick of Sarah Bernhardt. But you expressed a wish that I should come. For me, your wish is a command. I am only too glad to be able to do you this little service. What would one not do to please you, you are so good." And he went on, "Sarah Bernhardt; that's what they call the Voice of God, ain't it? You see, often, too, that she 'sets the boards on fire.' That's an odd expression, ain't it?" in the hope of an enlightening commentary, which, however, was not forthcoming. "D'you know," Mme. Verdurin had said to her husband, "I believe we are going the wrong way to work when we depreciate anything we offer the Doctor. He is a scientist who lives quite apart from our everyday existence; he knows nothing himself of what things are worth, and he accepts everything that we say as gospel." "I never dared to mention it," M. Verdurin had answered, "but I've noticed the same thing myself." And on the following New Year's Day, instead of sending Dr. Cottard a ruby that cost three thousand francs, and pretending that it was a mere trifle, M. Verdurin bought an artificial stone for three hundred, and let it be understood that it was something almost impossible to match. When Mme. Verdurin had announced that they were to see M. Swann that evening; "Swann!" the Doctor had exclaimed in a tone rendered brutal by his astonishment, for the smallest piece of news would always take utterly unawares this man who imagined himself to be perpetually in readiness for anything. And seeing that no one answered him, "Swann! Who on earth is Swann?" he shouted, in a frenzy of anxiety which subsided as soon as Mme. Verdurin had explained, "Why, Odette's friend, whom she told us about."