Friday would have been Princess Diana's 55th birthday. The princess of Wales in the 1980s and 1990s may have died in an infamous car crash, but her legacy lives on — especially in the form of her sons, Prince William and Prince Harry. Prince William, in fact, named his daughter after her: Charlotte Elizabeth Diana.

“When she died, there was a gaping hole, not just for us but also for a huge amount of people across the world,” Prince Harry told People recently. “If I can try and fill a very small part of that, then job done. I will have to, in a good way, spend the rest of my life trying to fill that void as much as possible. And so will William.”

Princess Diana, her sons, Harry and William, and Prince Charles watch the parade march past as part of the commemorations of VJ Day in 1995. Getty Images

In honor of Lady Di, here are 10 of her most popular quotes, collected from Wikiquote, the BBC and

"At the age of 19, you always think you're prepared for everything, and you think you have the knowledge of what's coming ahead."

"Only do what your heart tells you."

"People think that at the end of the day a man is the only answer. Actually, a fulfilling job is better for me."

"I'd like people to think of me as someone who cares about them."

"I remember when I used to sit on hospital beds and hold people's hands, people used to be sort of shocked because they said they'd never seen this before, and to me it was quite a normal thing to do. And when I saw the reassurance that an action like that gave, I did it everywhere, and will always do that."

"When you are happy you can forgive a great deal."

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A picture taken Jan. 27, 1988, shows Princess Diana during her visit to the Footscray Park in suburb of Melbourne, Australia. Getty Images

"Everyone has the potential to give something back."

"Anywhere I see suffering, that is where I want to be, doing what I can."

"They say it is better to be poor and happy than rich and miserable, but how about a compromise like moderately rich and just moody?"

"Family is the most important thing in the world."

"I don't go by the rule book... I lead from the heart, not the head."

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Well-wishers hold flowers and embroidery in tribute to Diana at Kensington Palace on Aug. 31, 2007, in London. Getty Images