[Article] > He believed in ghosts; he had a morbid dread of being poisoned by refrigerator gases; he refused to go out when certain distinguished mathematicians were in town, apparently out of concern that they might try to kill him. “Every chaos is a wrong appearance,” he insisted—the paranoiac’s first axiom.

vs

[Book] > Gödel believed in ghosts; he had a morbid dread of being poisoned by refrigerator gases; he refused to go out when certain distinguished mathematicians were in town, apparently because he feared that they would try to kill him. Gödel said, "Every chaos is a wrong appearance."

This is kind of a bummer too, because the article was a wonderful read, and it actually flows a lot better than the text in the book. However, it does appear that a lot of the article is a re-wording of what's in the book, just weaved together into a better flow.

EDIT: Based on the other replies, I may have things reversed. It may be that the book is ripping off the article.