Oh, Oz never did give nothing to the Tin Man
That he didn't, didn't already have
— America, "Tin Man"
Thereafter he walked very carefully, with his eyes on the road, and when he saw a tiny ant toiling by he would step over it, so as not to harm it. The Tin Woodman knew very well he had no heart, and therefore he took great care never to be cruel or unkind to anything.
"You people with hearts," he said, "have something to guide you, and need never do wrong; but I have no heart, and so I must be very careful. When Oz gives me a heart of course I needn't mind so much."
— L. Frank Baum, The Wonderful Wizard of Oz
I know what the Tin Man is. He needed a heart.
(Later in the series)
I'm a machine. I can't be happy... but I understand more than you think. (While giving a somewhat sad look to John)
— Cameron, The Sarah Connor Chronicles
Jaime Sommers: You don't have to be so dramatic.
Sarah Corvus: Don't I? Cause I thought I was just told by the one person who can save my life that she has better things to do. That feels pretty dramatic to me... not that I can actually feel anything, but I can intellectually imagine that that feels pretty dramatic.
— Bionic Woman (2007)