"I must remember that," replied Denis with a wan smile. "There is one thing I should very much like to get out of you; the secret of your zest in life. You have so many interests. How do you manage it?" "Heredity, I suppose. It has given me a kind of violent driving power. I take things by the throat. Have you ever heard of Thomas Keith, a soldier in a Highland regiment, who became governor of the Holy City of Medina? No, I suppose you have not. And yet he must have been a remarkable man, to obtain this unique position in the world. No interest in Arabian history? Why not? Well, Thomas Keith--that is my stock. Pirates and adventurers. Of course I live sensibly. Shall I give you my recipe for happiness? I find everything useful and nothing indispensable. I find everything wonderful and nothing miraculous. I reverence the body. I avoid first causes like the plague. You will find that a pretty good recipe, Denis." The young man wondered whether the prescription would be of any avail for his particular complaint. Then they went into the garden, Mr. Keith hobbling painfully with two sticks and indulging in very bad language. They paused awhile under some trellis work covered with a profusion of Japanese convolvuluses, pale blue, slate colour, rose-tinted, purple, deep red, with white and coloured bands, a marvellous display of fragile beauty. "I have never seen anything like it!" declared Denis. "They die away in winter. I get fresh seeds every year from Japan, the latest varieties. How they cling for support to the wooden framework! How delicate and fair! One hardly dares to touch them. Are you always going to be a convolvulus, Denis?" "Me? Oh, I see what you mean. Were you never a convolvulus, Mr. Keith?" His friend laughed. "It must have been a good while ago. You don't like advice, do you? Have you ever heard of that Sparker affair?" "You don't mean to say--" "Yes. That was me. That was my little contribution to the gaiety of University life. So you see I am in the position to give advice to people like yourself. I think you should cultivate the function of the real, and try to remain in contact with phenomena. Noumena are bad for a youngster. But perhaps you are not interested in psychology?" "Not exactly, I'm afraid," replied Denis, who was more anxious to see those cannas. "So I perceive. Wouldn't you get more fun out of life if you were? I am nearly done with psychology now," he added. "It was the Greek philosophers before then. When I take up a subject this is what I do. I don't ask what are Aristotle's teachings or relations to his age or to humanity. That would lead me too far. I ask myself: what has this fellow got to say to me? To me, you understand. To me." "That must simplify matters."