A robot may not injure a human being, or, through inaction, allow a human being to come to harm. "The First Law of Robotics"

What I will be remembered for are the Foundation Trilogy and the Three Laws of Robotics. What I want to be remembered for is no one book, or no dozen books. Any single thing I have written can be paralleled or even surpassed by something someone else has done. However, my total corpus for quantity, quality and variety can be duplicated by no one else. That is what I want to be remembered for.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws. "The Third Law of Robotics"

A robot must obey the orders given it by human beings except where such orders would conflict with the First Law. "The Second Law of Robotics"

A robot may not injure humanity, or, through inaction, allow humanity to come to harm. "The Zeroth Law of Robotics"