Army Sgt. Kimberly Singletary is hugged by family friend Regina Ayala during a welcome home ceremony at Hunter Army Airfield Dec. 30, 2005, in Savannah, Georgia. Getty Images

Monday is National Girlfriends Day, a celebration of the women you love. Since it's yet another social-media-friendly-but-not-necessarily-real holiday, you can observe it however you want: either as a chance to recognize female friendship or let your lover know you appreciate her.

National Girlfriends Day doesn't have a clear origin, according to, which means you're free to use it as an excuse to drink margaritas with your BFFs or give your significant other a new purse. The only holiday requirement seems to be that you recognize how important your relationships — platonic, intimate and everything in between — are.

You can do this by sharing quotes with your girlfriend of choice. Here are 15 sayings for Monday's holiday, collected from New York Magazine, Thought Catalog and BrainyQuote:

"Friendship between women is different than friendship between men. We talk about different things. We delve deep. We go under, even if we haven’t seen each other for years." — Jane Fonda

"I think behind every great man there's got to be a great woman, whether she's your wife, your girlfriend or not." — Prince Royce

"True friendship is like a rose: We don't realize its beauty until it fades." — Evelyn Loeb

"I like being scared every now and then, I like the suspense and the thrills. Nothing like taking a girlfriend to a movie and holding her hand while she jumps." — Scott Foley

"When my girlfriend and I talk about being happy, I'll get choked up, which I think is the greatest gift you can give a girlfriend." — Seth Meyers

"Each friend represents a world in us, a world possibly not born until they arrive, and it is only by this meeting that a new world is born." — Anaïs Nin

"We certainly bond with each other in times of crisis or these times when we go through these big touchstone moments ... and when we bond, in those really important, pivotal, transitional moments in our lives, we’re really vulnerable and therefore we give each other an awful lot of information about ourselves." — Elissa Schappell

"Women are made to be loved, not understood." — Oscar Wilde

"If women didn’t exist, all the money in the world would have no meaning." — Aristotle Onassis

"There is nothing better than a friend, unless it is a friend with chocolate." — Linda Grayson

"I don't know what I would have done so many times in my life if I hadn't had my girlfriends. They have literally gotten me up out of bed, taken my clothes off, put me in the shower, dressed me, said, 'Hey, you can do this,' put my high heels on and pushed me out the door!" — Reese Witherspoon

"It's all about reminding the other person how important and special she is to you." — Tyler Hoechlin

"There are only three things to be done with a woman. You can love her, suffer for her or turn her into literature." — Henry Miller

"Whether you're throwing up or breaking up, you want your girlfriend right there! I don't trust women who don't go to their girlfriends." — Drew Barrymore

"There's nothing better than a glass of wine, a girlfriend and a long talk." — Karen Fairchild