The duke was now becoming an old man, and with advancing age came a disposition to leave the task of governing to others, and to weary of Confucius' high-flown lectures. He ceased "to use" Confucius, as the Chinese historians say, and the Sage was therefore indignant, and ready to accept any offer which might come from any quarter. While in this humor he received an invitation from Pih Hih, an officer of the state of Tsin who was holding the town of Chung-mow against his chief, to visit him, and he was inclined to go. It is impossible to study this portion of Confucius' career without feeling that a great change had come over his conduct. There was no longer that lofty love of truth and of virtue which had distinguished the commencement of his official life. Adversity, instead of stiffening his back, had made him pliable. He who had formerly refused to receive money he had not earned, was now willing to take pay in return for no other services than the presentation of courtier-like advice on occasions when Duke Ling desired to have his opinion in support of his own; and in defiance of his oft-repeated denunciation of rebels, he was now ready to go over to the court of a rebel chief, in the hope possibly of being able through his means "to establish," as he said on another occasion, "an Eastern Chow." Again Tsze-loo interfered, and expostulated with him on his inconsistency. "Master," said he, "I have heard you say that when a man is guilty of personal wrong-doing, a superior man will not associate with him. If you accept the invitation of this Pih Hih, who is in open rebellion against his chief, what will people say?" But Confucius, with a dexterity which had now become common with him, replied: "It is true I have said so. But is it not also true that if a thing be really hard, it may be ground without being made thin; and if it be really white, it may be steeped in a black fluid without becoming black? Am I a bitter gourd? Am I to be hung up out of the way of being eaten?" But nevertheless Tsze-loo's remonstrances prevailed, and he did not go.