Quotation.Cloud - A repository of notable quotations from across time and space

One, a robot must not injure a human being, or, through inaction, allow a human being to come to harm. Two, a robot must obey the orders given it by human beings except where such orders would conflict with the First Law. And three, a robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.

 - Isaac Asimov