8 - BIT
1. A robot may not harm a human being or, remaining passive, allow a human being to be exposed to danger.
2. A robot must obey the orders given to it by a human being, unless such orders conflict with the First Law.
3. A robot must protect its existence so long as such protection does not conflict with the First or Second Law.
4. Any robot has the right to reproduce itself, as long as this does not contradict the first, second or third law of robotics.