Guinan: Q was talking about you, but he was talking about all of you. It's what's special about humans.
Picard: Yeah, our inability to escape the past.
Guinan: The opposite. When something inside you is broken, it stays with you. You live in the past until you're able to reconcile it, even if it's painful. You do the work because you want to evolve. I almost forgot how unique that is in the galaxy.