Project Gutenberg 2020-02-15 Public domain in the USA. 122 Del Rey, Lester 1915 1993 Rey, Lester del Knapp, Leonard Giunta, John 1920 1970 Giunta Guinta, John Giunta, J. The Course of Logic Produced from Worlds of If Science Fiction, September 1963 Produced by Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net "The Course of Logic" by Lester Del Rey is a science fiction novella written in the early 1960s. The story explores themes of evolution, intelligence, and survival through the lens of alien creatures known as silths. As the narrative unfolds, the silths, who have lost their original form and major capabilities, interact with human beings, leading to reflections on logic, gender roles, and the nature of intelligence. The story centers around two silths, Arnek and his female mate Ptarra, who have survived centuries after escaping a destroyed universe. They discover a crashed probe and two human survivors, leading them to consider infiltrating the humans' bodies to continue their existence. As the silths track the humans and plan their next moves, discussions of evolution and logic emerge, revealing Ptarra's cold reasoning versus Arnek's more intuitive approach. Ultimately, they succeed in taking over the humans' forms, raising questions about identity and the potential for a new beginning in an unfamiliar galaxy. The narrative deftly interweaves action, mental conflict, and philosophical discourse, examining what it means to truly understand another being. (This is an automatically generated summary.) Reading ease score: 84.8 (6th grade). Easy to read. en Science fiction Short stories Extraterrestrial beings -- Fiction Human-alien encounters -- Fiction PS Text Category: Science-Fiction & Fantasy 53834 2025-06-24T10:41:12.973118 text/html 29954 2024-10-17T16:30:29 text/html 312132 2025-06-24T10:41:14.650133 application/epub+zip 310962 2025-06-24T10:41:13.336090 application/epub+zip 83855 2025-06-24T10:41:13.128129 application/epub+zip 348969 2025-06-24T10:41:15.813127 application/x-mobipocket-ebook 341439 2025-06-24T10:41:14.456108 application/x-mobipocket-ebook 114615 2022-09-27T18:15:26.862920 application/x-mobipocket-ebook 47229 2023-09-26T09:00:51.663514 text/plain 27388 2024-10-17T16:30:29 text/plain; charset=us-ascii 17525 2025-06-24T10:41:15.940103 application/rdf+xml 32212 2025-06-24T10:41:13.208142 image/jpeg 5188 2025-06-24T10:41:13.168115 image/jpeg 487477 2025-06-24T10:41:12.986127 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia en.wikipedia More titles under McCann, Edson