And now, with sudden illumination of the spirit, the conviction came to her that this was the truth, and that this man walking by her side talking in his exquisite voice to her, looking at her with his deep blue eyes, could inspire in her all the passion and all the devotion, and all the tenderness which _Héloise_ had felt of old. And the magnitude of the discovery kept her silent, with lowered lids. He waited for her to speak, but when no words came, he bent forward and looked into her face. The eyes which at last met his were troubled and sweet, and not falcon-like in their proud serenity as usual. "Do not let us talk about love," she said at last. "It is a moving theme, and better left alone. Yesterday I was reading the 'Letters of Abelard and Héloise,' and it is wiser to remember the wisdom in this phrase of _Abelard's_ than to talk of love: 'What great advantages would philosophy give us over other men, if by studying it we could learn to govern our passions.'" Mordryn smiled. "Finish the quotation," he commanded, "or shall I? 'What efforts, what relapses, what agitations do we undergo. And how long are we tossed in this confusion unable to exert our reason to possess our souls, or to rule our affections. What a troublesome employment is love!' Philosophers remember _Abelard_ as a great scholar and ethical teacher, but he lives not by his learning or his philosophy, but by the memory of his profound and passionate love." Katherine sighed. "I suppose it is indeed divine, but please do not let us talk of it; it makes everyday life grey and commonplace by contrast." The Duke was sufficiently master of himself to realise that it was wiser to take her advice. To discuss love on a March morning with this most attractive and forbidden young woman was not wisdom, so he changed the subject by expressing his contrition at having come to the schoolroom. He hated to think that his chivalry had been at fault. Then they talked of many things, all in the abstract, evolution and ethics and aspirations and theories, and at last Katherine said: "How glorious to be you! To have all that is noble your own by right, and so to have leisure to let your soul expand to the highest, without wasting it in the struggle to emerge from clay." Her deep voice had a passion in it, and her eyes flashed. "You, and all aristocrats, should be grateful to God." Later in the day, Mordryn felt that it was fortunate that at this particular moment they had reached the gate of the far lodge, the opening of which broke the spell, of what he might have answered he did not feel altogether sure, so deeply had she affected him. Mrs. Peterson was a good deal better, it seemed, and Katherine proposed to stay with her for half an hour--so she came out of the door and asked the Duke not to wait for her. "Go back without me--I have been so happy--and please--do not talk to me any more to-day--and, oh! please, remember who you are and who I am, and leave me alone."