Girls are trained to say, ‘I wrote this, but it’s probably really stupid.’ Well, no, you wouldn’t write a novel if you thought it was really stupid. Men are much more comfortable going, ‘I wrote this book because I have a unique perspective that the world needs to hear.’ Girls are taught from the age of seven that if you get a compliment, you don’t go, ‘Thank you’, you go, ‘No, you’re insane.

I love flawed female characters, duking it out.

But ambition is a funny thing: it creeps in when you least expect it and keeps you moving, even when you think you want to stay put.

I hate to be the person that's like, "We're doing something that's never been done before."

I still go to a party and say something embarrassing to someone, and then write them a weird e-mail about it the next day, and then write them a text because I think they didn't get the e-mail. No matter what happens with your level of success, you still have to deal with all the baggage that is yourself.

I do think girls in their twenties accept certain kinds of lesser treatment than they would at other times in their lives.

I thought about ["Summer Sisters" ] so often as I was writing about these female characters who love each other and hated each other and were sort of in love with each other.