<li><strong>1.</strong> <em>A robot may not injure a human being or, through inaction, allow a human being to come to harm.</em></li>
<li><strong>2.</strong> <em>A robot must obey any orders given to it by human beings, except where such orders would conflict with the First Law.</em></li>
<li><strong>3.</strong> <em>A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.</em></li>
<li><strong>Zeroth Law:</strong> <em>A robot may not harm humanity, or, by inaction, allow humanity to come to harm.</em></li>
<li><strong>Lyuben Dilov's Forth law:</strong> <em>A robot must establish its identity as a robot in all cases.</em></li>
<li><strong>Harry Harrison's Forth law:</strong> <em>A robot must reproduce. As long as such reproduction does not interfere with the First or Second or Third Law.</em></li>
<li><strong>Nikola Kesarovski's Fifth law:</strong> <em>A robot must know it is a robot.</em></li>