Ni jedan čovek nije ostrvo, sam po sebi celina; svaki je čovek deo Kontinenta, deo zemlje; ako Grudvu zemlje odnese more Evrope je manje, kao da je odnelo neki Rt, kao da je odnelo posed tvojih prijatelja ili tvoj; smrt ma kog čoveka smanjuje mene, jer ja sam obuhvaćen Čovečanstvom. I stoga nikad ne pitaj za kim zvono zvoni; ono zvoni za tobom...
- A robot may not injure a human being or, through inaction, allow a human being to come to harm - A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law - A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws
- A robot may not injure a human being or, through inaction, allow a human being to come to harm - A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law - A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws
- A robot may not injure a human being or, through inaction, allow a human being to come to harm - A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law - A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws
Tema: 
