You have faith that you will retain your faith? Why? Because, ...
Brennan: You have faith that you will retain your faith? Why?
Booth: Because, Bones. The sun will come up and tomorrow is a new day.
Brennan: I know that feeling.
Booth: You know what it feels like to get your faith back?
Brennan: When I see effects and I am unable to discern a cause, my faith in reason and consequences is shaken.