Season 7, Episode 11: Disarm

“To a degree, medicine is a science...but I would argue that it's also an art. The doctors who see medicine as a science only, you don't want them by your side when you're bleeding won't stop or when your child is screaming in pain. The clinicians go by the book. The artists follow their guts. The artists feel your pain and they go to extremes to make it stop. Extreme measures. That's where science ends and art begins.”

 

“Surgery is extreme. We cut into your body, take out pieces, and put what's left back together. Good thing life doesn't come with a scalpel because if it did, when things started to hurt, we would just cut and cut and cut. The thing is what we take away with a scalpel we can't ever get back. So, like a said, good thing.”

Source: http://en.wikiquote.org/wiki/Grey%27s_Anatomy#Push_.5B6.17.5D