The only difference is--moral guilt never leaves you and grows worse with the years. But there are so many tragic sadnesses in life that they have a way of merging into one big, onrushing stream and when you measure that stream against a brighter one, the joy-stream, the scales seem to stay just about even, with the balance maybe just a little heavier on the joyful side. Right at the moment there was another big, onrushing stream running parallel with the sadness. The sober-obligation stream. Or maybe duty-stream would be a better name for it. We spend at least a third of our lives immersed in it up to our necks and swimming against the toughest kind of currents. Sometimes I think we could do without it entirely. What was it Baudelaire said about boredom? "But well you know that dainty monster, thou, hypocrite reader, fellow man, my brother." You could practically say the same thing about duty. But the stream is there, and if you just stay on the bank watching the other swimmers you won't really have the right to plunge into the joy-stream with a clear conscience. The first thing I had to do was get her out of the Chart Room before she collapsed. She was close to hysteria and I didn't even want her to look at the body again. I was careful to stand between her and the robot, and when I guided her gently toward the door I kept my hand on the back of her head and kept her face pressed to my chest. It was more difficult than it would have looked on a cinema screen--more awkward and less romantic, and that was the way I wanted it to be, because nothing could have been further from my mind at that moment than the romantic glow I'd felt when I had been sitting across a table from her in a lakeside tavern on Earth, and hadn't fully realized that Joan was still the only really important woman in my life. Oh, all right. You can't have a head that beautiful nestling in the middle of your chest without feeling a certain ... well, a quickening of your pulse, at least. It can happen even in the presence of death, when you've just been shaken to the depths in a ghastly way. Perhaps because of that.... Sex and death. Don't be morbid, Ralphie boy. Don't turn the clock back and let the old Freudian catch-alls of a century ago confuse and mislead you. Half of all that has been made clearer because we know now what Man was like five million years ago when he was a very predatory ape. Sure, sex and death are closely linked. Dawn man went hunting and slew a cave bear and threw it down before his mate, all bloody, with pride swelling in him and just the excitement of the hunt, the thrill and danger of it, made him want to make love in just as exciting a way. But sex and life are even more closely linked, and in life there are loyalties to consider and one woman becomes more important to you than all the rest and you don't need that kind of stimulation to enable you to make love to her in the most exciting possible way.