--A disciple said to him, 'Master, I have attained to your TAO. I can do without fire in winter: I can make ice in summer.' "'You merely avail yourself of latent heat and latent cold,' replied Lu Chü. 'That is not what I call TAO. I will demonstrate to you what my TAO is.' "Thereupon he tuned two lutes, and placed one in the hall and the other in the adjoining room. And when he struck the _Kung_ note on one, the _Kung_ note on the other sounded; when he struck the _chio_ note on one, the _chio_ note on the other sounded. This because they were both tuned to the same pitch. "But if he changed the interval of one string, so that it no longer kept its place in the octave, and then struck it, the result was that all the twenty-five strings jangled together. There was sound as before, but the influence of the key-note was gone. Is this your case?" "The Confucianists, the Mihists, and the followers of Yang and Ping," replied Hui Tzŭ, "are just now engaged in discussing this matter with me. They try to overwhelm me with argument or howl me down with noise. Yet they have not proved me wrong. Why then should you?" "A man of the Ch'i State," replied Chuang Tzŭ, "sent away his son into the Sung State, to be a door-keeper, with maimed body. Doorkeepers in ancient times were, for obvious reasons, deprived of their feet. But a vase, which he valued highly, he kept carefully wrapped up. Thus Hui Tzŭ sacrifices the greater to the less. "He who would seek for a stray child, but will not leave his home, is like to lose him. Thus restricted to his four antagonistic schools is Hui Tzŭ's search for TAO. "If a man of Ch'u, who was sent away to be a door-keeper, began, in the middle of the night, when no one was about, to fight with the boatman, I should say that before his boat left the shore he would already have got himself into considerable trouble." A maimed man (Hui Tzŭ) should avoid quarrels. His own share of TAO is insufficient even for himself. * * * * * Chuang Tzŭ was once attending a funeral, when he passed by the grave of Hui Tzŭ. Turning to his attendants, he said, "A man of Ying Capital of the Ch'u state. who had his nose covered with a hard scab, no thicker than a fly's wing, sent for a stone-mason to chip it off. The stone-mason plied his adze with great dexterity while the patient sat still and let him chip. When the scab was all off, the nose was found to be uninjured, the man of Ying never having moved a muscle. "When Yüan, prince of Sung, heard of this, he summoned the stone-mason and said, 'Try to do the same for me.' "'I used to be able to do it Sire,' replied the stone-mason, 'but my material has long since perished.' "And I too, ever since he perished, have been without my material, having no one with whom I can speak." A generous compliment to an old adversary.