"[in a flashback] NS-4 Robot: You are in danger. Detective Del Spooner: Save her! Save the girl! [end of flashback] Detective Del Spooner: But it didn't. It saved me. Dr. Susan Calvin: A robot's brain is a difference engine, it must have calculated— Detective Del Spooner: It did. I was the "logical" choice. It calculated I had a forty-five percent chance of survival. Sarah only had an eleven percent chance. That was somebody's baby. Eleven percent is more than enough. A human being would have known that. But robots, nothing here. [points at heart] They're just lights, and clockwork. But you go ahead and trust them if you wanna."