About General U.S. Grant, as quoted in  The Every-day Life of Abraham Lincoln: A Narrative and Descriptive Biography http://www.granthomepage.com/grantgeneral.htm, by Francis Fisher Brown, p. 520 
1860s
                                    
“All I knew was that I would die if he sent me away. He shrugged. You can cut a man’s heart out with a shrug, did you know that?”
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David Eddings 43
American novelist 1931–2009Related quotes
“You don't know me; you never knew my heart. No man knows my history.”
                                        
                                        History of the Church 6:317 (7 April 1844) 
1840s, King Follett discourse (1844) 
Context: You don't know me; you never knew my heart. No man knows my history. I cannot tell it: I shall never undertake it. I don't blame any one for not believing my history. If I had not experienced what I have, I could not have believed it myself.... When I am called by the trump of the archangel and weighed in the balance, you will all know me then.
                                    
                                        
                                        Variant: The gun slipped on Emily's temple, and he suddenly knew that if she killed herself, he would die. Maybe not immediately, maybe not with the same blinding pain, but it would happen. You couldn't live for very long without a heart. 
Source: The Pact
                                    
“If you would tell me the heart of a man, tell me not what he reads, but what he rereads.”
“How can he do this? If you were mine, I would fight to keep you. I would die, before I let you go.”
Source: Daughter of the Forest
Source: The Boy in the Striped Pajamas