“My only answer is, if my grave stood open on one side and you upon the other I'd go into my grave before I would take one step to meet you.”

“...But the one thing that I would never, ever recover from would be losing you. You made me promise before to go on if that happened, but Bones, I wouldn't want to. - Cat from This Side of the Grave”

“I knew that I shouldn’t have, but I did it all the same; and there you have my epitaph, or one of them, because my grave is going to require a monument inscribed on all four sides with rueful mottoes, in small characters, set close together.”

“Graves aren't for the dead. They're for the loved ones the dead leave behind them. Once those loved ones have gone, once all the lives that have touched the occupant of any given grave had ended, then the grave's purpose was fulfilled and ended. I suppose if you looked at it that way, one might as well decorate one's grave with an enormous statue or a giant temple. It gave people something to talk about, at least. Although, following that logic, I would need to have a roller coaster, or maybe a Tilt-A-Whirl constructed over my own grave when I died. Then even after my loved ones had moved on, people could keep having fun for years and years. Of course, I'd need a slightly larger plot.”

“Are you a devil?""I am a man," answered Father Brown gravely; "and therefore have all devils in my heart.”

“I pretended it was nothing. That day I told you about my baby, and why I had had an abortion. It would have damaged other lives. I had killed my own real baby ten years before, but it remains my living child, and will always be so. It is worse when there is no grave. I wanted you to recognize its existence. No one else does, and that is what I cannot bear.”