Hmmm, I just tried 3 successive times and got:
The quote "Her certainty was always troubling. That edge of fanaticism showing through like the metal ribs of a poorly made umbrella" is from the book "I, Robot" by Isaac Asimov. Specifically, it is from the story "Reason," which is one of the interconnected short stories in the collection. In "Reason," the character Powell makes this observation about Susan Calvin, highlighting her strong convictions and the potentially unsettling nature of her absolute certainty.
The quote "Her certainty was always troubling. That edge of fanaticism showing through like the metal ribs of a poorly made umbrella" is from the book "The Wind-Up Bird Chronicle" by Haruki Murakami. This novel, originally published in 1994-1995, is a complex, multi-layered narrative that intertwines the mundane with the surreal. The quote reflects Murakami's characteristic style, blending introspective observations with vivid, often unexpected imagery.
The quote "Her certainty was always troubling. That edge of fanaticism showing through like the metal ribs of a poorly made umbrella" appears to be from the novel Children of Time by Adrian Tchaikovsky. This book is a science fiction tale that explores themes of evolution, artificial intelligence, and humanity's future among the stars. The specific quote captures the unsettling nature of a character's unwavering beliefs and the potential for fanaticism to emerge.
It's obviously not very good at this sort of thing!