He had gradually grown excited, forgetting his approaching death in his ardent curiosity about life. And he sketched, with broad strokes, his last theory. Man was surrounded by a medium—nature—which irritated by perpetual contact the sensitive extremities of the nerves. Hence the action, not only of the senses, but of the entire surface of the body, external and internal. For it was these sensations which, reverberating in the brain, in the marrow, and in the nervous centers, were there converted into tonicity, movements, and thoughts; and he was convinced that health consisted in the natural progress of this work, in receiving sensations, and in giving them back in thoughts and in actions, the human machine being thus fed by the regular play of the organs. Work thus became the great law, the regulator of the living universe. Hence it became necessary if the equilibrium were broken, if the external excitations ceased to be sufficient, for therapeutics to create artificial excitations, in order to reestablish the tonicity which is the state of perfect health. And he dreamed of a whole new system of treatment—suggestion, the all-powerful authority of the physician, for the senses; electricity, friction, massage for the skin and for the tendons; diet for the stomach; air cures on high plateaus for the lungs, and, finally, transfusion, injections of distilled water, for the circulatory system. It was the undeniable and purely mechanical action of these latter that had put him on the track; all he did now was to extend the hypothesis, impelled by his generalizing spirit; he saw the world saved anew in this perfect equilibrium, as much work given as sensation received, the balance of the world restored by unceasing labor. Here he burst into a frank laugh. “There! I have started off again. I, who was firmly convinced that the only wisdom was not to interfere, to let nature take its course. Ah, what an incorrigible old fool I am!” Ramond caught his hands in an outburst of admiration and affection. “Master, master! it is of enthusiasm, of folly like yours that genius is made. Have no fear, I have listened to you, I will endeavor to be worthy of the heritage you leave; and I think, with you, that perhaps the great future lies entirely there.” In the sad and quiet room Pascal began to speak again, with the courageous tranquillity of a dying philosopher giving his last lesson. He now reviewed his personal observations; he said that he had often cured himself by work, regular and methodical work, not carried to excess. Eleven o’clock struck; he urged Ramond to take his breakfast, and he continued the conversation, soaring to lofty and distant heights, while Martine served the meal. The sun had at last burst through the morning mists, a sun still half-veiled in clouds, and mild, whose golden light warmed the room. Presently, after taking a few sips of milk, Pascal remained silent. At this moment the young physician was eating a pear.