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| | Isaac Asimov FAQ |
 | | Unlike the Three Laws, however, the Zeroth Law is not a fundamental part of positronic robotic engineering, is not part of all positronic robots, and, in fact, requires a very sophisticated robot to even accept it. |
 | | Asimov claimed that the Three Laws were originated by John W. Campbell in a conversation they had on December 23, 1940. |
 | | The Three Laws did not appear in Asimov's first two robot stories, "Robbie" and "Reason", but the First Law was stated in Asimov's third robot story "Liar!", which also featured the first appearance of robopsychologist Susan Calvin. |
| www.asimovonline.com /asimov_FAQ.html (12119 words) |
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