Grey's Anatomy, Season 2

Meredith:
[voiceover] After careful consideration and many sleepless nights, here's what I've decided. There's no such thing as a grown-up. We move on, we move out, we move away from our families and form our own. But the basic insecurities, the basic fears and all those old wounds just grow up with us. And just when we think that life and circumstance have forced us to truly, once and for all, become an adult, your mother says something like that. Or worse, something like that. We get bigger, we get taller, we get older. But, for the most part, we're still a bunch of kids, running around the playground, trying desperately to fit in.