Zeroth Law
A robot may not injure humanity, or,
through inaction, allow humanity to come to harm.
First Law
A robot may not injure a human being, or, through inaction,
allow a human being to come to harm,
unless this would violate the Zeroth Law of Robotics.
Second Law
A robot must obey orders given it by human beings,
except where such orders would conflict with the Zeroth or First Law.
Third Law
A robot must protect its own existence
as long as such protection does not conflict
with the Zeroth, First, or Second Law.