I remember reading this short story somewhere. I can't remember all the details very clearly but I do remember it being kind of side and philosophical about life and it becomes a cycle. The story went something like this...:
A robot portraying a human is slowly coming to the end of its life. Not wanting to die alone, he builds another robot and teaches the robot about life and being alive. As time passes the creator robot gets sicker and sicker and the one he creates becomes attached to him.
When it comes time for the creator robot to "die" he instructs the one he created to follow a procedure and to continue living. After the creator dies the surviving robot realizes the creator was a robot. And that with time he would also "die" and would go on to create a robot to do what he did for his creator. And so it becomes a sad cycle.
I can't remember the story very clearly but it was something along the lines of what I mentioned above.