His eyes filled with tears. "I have not forgotten," he said; "perhaps I am only just beginning to learn."
She gave him a curious look; then, moving her head, proceeded with an instant change of tone, "Well, what is the secret of the smile of the Sphinx?"
A wave of emotion swept over him. He smiled and arose.
"With the details of my enquiry I will not trouble you. Suffice it to say that for nearly forty years I have been searching."
"So long as that?"
"Many hard early days I spent in the desert and endured great privations."
"Indeed? I am sorry. Forget them."
"I would not if I could—they were the price of knowledge. At one time I came near losing my wits."
"So? I am sorry."
"Then I spent some years interrogating the wisest of earth."