“Unfortunately robots capable of manufacturing robots do not exist. That would be the philosopher's stone, the squaring of the circle.”

“The Three Laws of Robotics:1: A robot may not injure a human being or, through inaction, allow a human being to come to harm;2: A robot must obey the orders given it by human beings except where such orders would conflict with the First Law;3: A robot must protect its own existence as long as such protection does not conflict with the First or Second Law;The Zeroth Law: A robot may not harm humanity, or, by inaction, allow humanity to come to harm.”

“Sam: You know what I wish?Cassel: What?Sam: That someone would covert my bed into a robot that would fight other bed robots to the death for me.”

“Robots don’t make better lovers, but Roberts do.”

“Oh you know me. I have no emotions. I'm a robot. Or a nun. A robot nun.”

“Do not apologize for crying. Without this emotion, we are only robots.”