Former first daughters Barbara and Jenna Bush wrote a letter to outgoing first daughters Sasha and Malia Obama, which was published in Time on Thursday. The sisters commended the pair on their achievements and offered advice for them as they enter "the rarified club" of "former First Children."

The experiences they shared in the White House will be informative as they carry out their lives outside Capitol Hill, the Bush sisters wrote. But though it may seem difficult to carve out a life in the shadow of their parents' legacy, the sisters said they were confident they would meet the task.

"[Y]ou have so much to look forward to," the sisters wrote. "You will be writing the story of your lives, beyond the shadow of your famous parents, yet you will always carry with you the experiences of the past eight years."

AP/Susan Walsh - apimages.com

Leaving the White House doesn't mean leaving the staffers who helped them adopt to the new environment and stood by them throughout the past 8 years, though. The Bush's implored them to stay in touch, as they did.

"Never forget the wonderful people who work at the White House. Our greeter as 7-year-olds at our grandfather’s Inauguration was Nancy, the White House florist, who ushered us in from the cold. She helped us make colorful bouquets of winter flowers for our grandparents’ bedside. Twenty years later, Nancy did the flowers for Jenna’s wedding. Cherish your own Nancy."

You can read the full letter here.