Grey's Anatomy, Season 2

Meredith:
[voiceover] We all go through life like bulls in a china shop. A chip here, a crack there. Doing damage to ourselves, to other people. [...] The problem is trying to figure out how to control the damage we've done, or that's been done to us. Sometimes the damage catches us by surprise. Sometimes we think we can fix the damage. And sometimes the damage is something we can't even see.