Ann Brashares said this quote
“ We're the Septembers now. The real ones. We are everything to one another. We don't need to say so; it's just true. Sometimes it seems like we're so close we form one single complete person rather than four separate ones. We settle into types- Bridget the athlete, Lena the beauty, Tibby the rebel, and me, Carmen, the...what? The one with the bad temper. But the one who cares the most. The one who cares that we stick together. ”