第 0 法律

Asimov proposed the "Three Laws of Robotics". The three laws are as follows:
-First Law: A robot may not injure a human being or, through inaction, allow a human being to come to harm.
-Second Law: A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.
-Third Law: A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

But in these laws, an important condition is missed:
-Zeroth Law: Robots are not human beings.