Asimov’s Laws

From Wikipedia: “In science fiction, the Three Laws of Robotics are a set of three rules written by Isaac Asimov, which almost all positronic robots appearing in his fiction must obey. Introduced in his 1942 short story “Runaround,” although foreshadowed in a few earlier stories, the Laws state the following:

• A robot may not injure a human being or, through inaction, allow a human being to come to harm.
• A robot must obey orders given to it by human beings, except where such orders would conflict with the First Law.
• A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.
• Later, Asimov added the Zeroth Law: “A robot may not harm humanity, or, by inaction, allow humanity to come to harm”; the rest of the laws are modified sequentially to acknowledge this.”