Sunday, August 5th marks Sisters Day. Even when your sister drives you crazy, it's tough to forget the moments that will have you cracking up together decades from now when you're both in rocking chairs. In the holiday's spirit, click through the slideshow below for the funniest, sweetest, and most honest quotes about sisters from Marilyn Monroe, Jodi Picoult, and more.
(Sisterless? Apply these quotes to your brother or best friend. They still work!)
Which quote is your favorite? Are you planning on celebrating with your sister this weekend? Sound off in the comments below or tweet @HuffPostTeen!