National Grandparents Day is held on the first Sunday after Labor Day of every year. Reuters

Sunday is National Grandparents Day, a holiday dedicated to all the Nanas and Papas, Grams and Gramps, and Bubbes and Zaydes in the United States. No matter the nickname, grandchildren across the country will take the day to recognize their parents’ parents.

Grandparents Day started with regional celebrations in the 1960s, but it didn’t become official in the U.S. until 1978. Then-president Jimmy Carter established in a proclamation that the first Sunday after Labor Day of each year would be National Grandparents Day.

Whether you’re sending a card, picking up the phone or just spending time remembering them Sunday, try using one of these famous quotes about grandparents. This list of 17 was collected from the American Grandparents Association and quotegarden:

“The reason grandchildren and grandparents get along so well is that they have a common enemy.” -- Sam Levenson

"If nothing is going well, call your grandmother." -- Italian proverb

"Because (grandparents) are usually free to love and guide and befriend the young without having to take daily responsibility for them, they can often reach out past pride and fear of failure and close the space between generations." -- Jimmy Carter

"When grandparents enter the door, discipline flies out the window." -- Ogden Nash

"Every house needs a grandmother in it." -- Louisa May Alcott

"Beautiful young people are accidents of nature, but beautiful old people are works of art." -- Eleanor Roosevelt

“Maybe that is the greatest of wonders: that we can be shaped so much by those we've known closely, and equally by those we've never known at all -- and that we too can change the world long after we've left it.” -- Jacob M. Appel

"Some of the world's best educators are grandparents." -- Charles W. Shedd

“Nobody can do for little children what grandparents do. Grandparents sort of sprinkle stardust over the lives of little children.” -- Alex Haley

“Grandparents are there to help the child get into mischief they haven’t thought of yet.” -- Gene Perret

“What children need most are the essentials that grandparents provide in abundance. They give unconditional love, kindness, patience, humor, comfort, lessons in life. And, most importantly, cookies.” -- Rudy Giuliani

“Elephants and grandchildren never forget.” -- Andy Rooney

“A grandmother is a safe haven.” -- Suzette Haden Elgin

“If you're lucky enough to still have grandparents, visit them, cherish them and celebrate them while you can.” -- Regina Brett

"Grandparents, like heroes, are as necessary to a child's growth as vitamins." -- Joyce Allston

"A grandmother pretends she doesn't know who you are on Halloween." -- Erma Bombeck

“Uncles and aunts, and cousins, are all very well, and fathers and mothers are not to be despised; but a grandmother, at holiday time, is worth them all.” -- Fanny Fern