''1---A robot may not injure a human being, or, through inaction, allow a human being to come to harm.
2---A robot must obey the orders given it by a human being except where such orders would conflict with the First Law.
3---A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.''

'''If a man has the right to give a robot any order that does not involve harm to a human being, he should have the decency never to give a robot any order that involves harm to a robot, unless human safety absolutely requires it. With great power goes great responsibility, and if the robots have Three Laws to protect men, is it too much to ask that men have a law or two to protect robots?'''