Grey's Anatomy, Season 10

Meredith:
[voice over] Every action has an equal and opposite reaction. Emergency rooms are kept in business by people who've learned that lesson the hard way. Skydivers, bullriders, people whose bold ideas often result in broken bones and smushed spleens. Surgeons are trained to deal with the fallout of the bold ideas, we pick up the pieces and do our best to fit them back together.