I, Robot

The Three Laws of Robotics

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 human beings 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 Law.

Handbook of Robotics, 56th Edition, 2058 A.D.