knew best, he could create best. Things he knew just from books or conversation—palaces, for example—tended to be lopsided and uncertain, although he could make them nearly perfect by laboring mentally over the details. Everything he created was three-dimensional. Even food tasted like food and seemed to nourish him. He could forget all about one of his creations, go to sleep, and it would still be there when he awakened. He could also uncreate. A single concentrated thought and the thing he had made would vanish. The larger the thing, the longer it took to uncreate.

Things he hadn't made—valleys and mountains—he could uncreate, too, but it took longer. It seemed as though matter was easier to handle once he had shaped it. He could make birds and small animals, or things that looked like birds and small animals.

He had never tried to make a human being.

He wasn't a scientist; he had been a space-pilot. He had a vague concept of atomic theory and practically no idea of genetics. He thought that some change must have taken place in his germ-plasm, or in his brain, or perhaps in the Earth. The "why" of it all didn't especially bother him. It was a fact and he accepted it.

He stared at the monument again. Something about it bothered him.

Of course, he could have created it, but he didn't know if the things he made would endure after his death. They seemed stable enough, but they might dissolve with his own dissolution. Therefore he compromised. He created a chisel and mallet, but selected a granite wall that he hadn't made. He cut the letters into the inside of the wall of the cave so they would be safe from the elements, working many hours at a stretch, sleeping and eating beside the wall.

From the mouth of the cave, he could see his ship, perched on a level plain of scorched ground. He was in no rush to get back to it. In six days the inscription was done, cut deeply and eternally into the rock.

The thought that had been bothering him as he stared at the gray granite finally came to the surface. The only people who would come to read it would be visitors from the stars. How would they decipher it? He stared at the inscription angrily. He should have written it in symbols. But what kind of symbols? Mathematics? Of course, but what would that tell them about Man? And what made him think they would discover the cave anyway? There was no use for an inscription when Man's entire history was written over the face of the 

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