Meghan Markle, Prince Harry honor Princess Diana on Instagram for the first time

Carrying on her legacy.

Prince Harry and Meghan Markle honored Harry's late mother, Princess Diana, on their joint Sussex Royal Instagram account for the first time on Friday, sharing an inspiring quote from the People's Princess.

"Carry out a random act of kindness, with no expectation of reward, safe in the knowledge that one day someone might do the same for you," the quote, written in the couple's signature font under their monogram, reads.

The post served as a kickoff of the couple's new series of posts that will highlight some of their favorite quotes.

"Words have the power to inspire, which is why we’re happy to share some of our favourite quotes," Harry and Meghan captioned the post. "From members of the public to public figures, from teachers and students to young leaders, we begin with a quote from Diana, Princess of Wales."

See photos of Princess Diana with her sons, William and Harry:

22 PHOTOS
Princess Diana with her sons
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Princess Diana with her sons
VENICE, ITALY - MAY 5: (FILE PHOTO) (L-R) Diana the Princess of Wales holds her son Harry, whilst looking at Prince William held by his father Prince Charles on May 5, 1985 in Venice, Italy. Prince William will celebrate his 21st birthday on June 21, 2003. (Photo by Georges de Keerle/Getty Images)
Princes William and Harry with their mother, Diana, Princess of Wales (1961 - 1997) in the garden of Highgrove House in Gloucestershire, 18th July 1986. William is wearing a Dallas Cowboys t-shirt.(Photo by Tim Graham/Getty Images)
TETBURY, UNITED KINGDOM - JULY 18: Princess Diana At Highgrove With Prince William And Prince Harry Dressed In Miniature Parachute Regiment Uniforms And Playing On Their Slide In The Garden (Photo by Tim Graham/Getty Images)
TETBURY, UNITED KINGDOM - JULY 18: Princess Diana With Her Sons Prince William And Prince Harry Playing With A Playhouse In The Garden Of Their Home Highgrove (Photo by Tim Graham/Getty Images)
The Prince and Princess of Wales on holiday with their children, Princes William and Harry, at the Spanish royal residence Marivent Palace, August 1987. (Photo by Terry Fincher/Getty Images)
The Princess of Wales arriving at Aberdeen airport with her sons William and Harry for a holiday at Balmoral Castle, August 1986. Princess Diana is wearing a polo motive sweater by Mondi. (Photo by Jayne Fincher/Getty Images)
UNITED KINGDOM - DECEMBER 01: Prince Charles, Prince of Wales and Diana, Princess of Wales at home in Kensington Palace with their sons Prince William and Prince Harry (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 16: Princess Diana And Prince William Leaving After Delivering Prince Harry To Mrs. Mynor's Nursery School. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - JUNE 11: Diana, Princess Of Wales, Holding A Young Prince Harry In Her Arms As She Watches Trooping The Colour With Prince William And Princess Margaret From The Balcony Of Buckingham Palace. (Photo by Tim Graham/Getty Images)
BALMORAL, SCOTLAND - AUGUST 18: Diana, Princess of Wales, and Prince Harry play on the banks of the River Dee, near Balmoral Castle.during a Summer vacation, on August 18, 1987, in Balmoral, Scotland. (Photo by Julian Parker/UK Press via Getty Images)
NECKER ISLAND, BRITISH VIRGIN ISLANDS - JANUARY 9: Diana, Princess of Wales, with Prince Harry ( centre ), and her Niece's and Nephew's on holiday on Necker Island , on January 9, 1989 in Necker Island, British Virgin Islands. (Photo by Julian Parker/UK Press via Getty Images)
BATH - MAY 30: (FILE PHOTO) Prince William, Diana, Princess of Wales, Prince Harry and Charles, Prince of Wales, attend the wedding of the Duke of Hussey's daughter in May, 1989 in Bath, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 12: (FILE PHOTO) Princess Diana with her sons Prince William and Prince Harry at Wetherby School on September 12, 1989 in London, England. It is Prince Harry's first day at school. (Photo by Anwar Hussein/Getty Images)
Diana, The Princess Of Wales Takes Her Sons, Prince'S William, And Harry Out On The Boat ' Maid Of The Mist ' To View Niagara Falls. (Photo by Julian Parker/UK Press via Getty Images)
CHERTSEY, UNITED KINGDOM - APRIL 18: Diana, Princess of Wales, with Prince Harry, on the Depth Charge ride at Thorpe Park, Theme Park, on April 18, 1992 in Chertsey United Kingdom . (Photo by Julian Parker/UK Press via Getty Images)
LECH, AUSTRIA - APRIL 10: Princess Diana With Princes William & Harry Skiing In Lech, Austria (Photo by Tim Graham/Getty Images)
Diana Princess Of Wales, Prince William & Prince Harry Visit The 'Thorpe Park' Amusement Park. (Photo by Julian Parker/UK Press via Getty Images)
AUSTRIA - MARCH 30: Lech: Princess Diana, sons William and Harry going to restaurant in calash In Lech, Austria On March 30, 1993. (Photo by Laurent SOLA/Gamma-Rapho via Getty Images)
LECH, AUSTRIA - MARCH 27: Princess Diana With Prince William & Prince Harry In Sleigh During Ski Holiday In Lech, Austria. Behind Are Diana's Friends Kate Menzies And Catherine Soames (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 19: Princess Diana, Prince Harry [ Waving ] And Prince William Watching The Parade Of Veterans On V J Day, The Mall, London. Designer Of Diana's Suit - Tomasz Starzewski (please Check - People Magazine, 04/12/1999) (Photo by Tim Graham/Getty Images)
EMBARGOED TO 0001 Sunday July 23, 2017. NO USE AFTER MONDAY JULY 31, 2017. NEWS EDITORIAL USE ONLY. NO USE ON THE FRONT COVERS OF ANY UK OR INTERNATIONAL MAGAZINES. NO COMMERCIAL USE (including any use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph (whose copyright is vested in the Duke of Cambridge and Prince Harry) is provided to you on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing. This photograph released by Kensington Palace, from the personal photo album of the late Diana, Princess of Wales, shows the princess holding Prince William whilst pregnant with Prince Harry, and features in the new ITV documentary 'Diana, Our Mother: Her Life and Legacy', which airs on ITV at 21.00hrs on Monday 24th July.
EMBARGOED TO 0001 Sunday July 23, 2017. NO USE AFTER MONDAY JULY 31, 2017. NEWS EDITORIAL USE ONLY. NO USE ON THE FRONT COVERS OF ANY UK OR INTERNATIONAL MAGAZINES. NO COMMERCIAL USE (including any use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph (whose copyright is vested in the Duke of Cambridge and Prince Harry) is provided to you on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing. This photograph released by Kensington Palace, from the personal photo album of the late Diana, Princess of Wales, shows the princess and Prince Harry on holiday and features in the new ITV documentary 'Diana, Our Mother: Her Life and Legacy', which airs on ITV at 21.00hrs on Monday 24th July.
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The post marks the first time that the couple has mentioned Harry's late mother on their account, which they launched this past spring.

While the couple, along with Prince William and wife Kate Middleton, strive to carry on Diana's teachings and good example, they have also maintained a close bond to the rest of her family, including her siblings.

Diana's sisters Lady Sarah McCorquodale and Lady Jane Fellows were both at the baptism of Harry and Meghan's son, Archie Harrison, at the beginning of July, and they appear in the official christening photos released by the palace following the private ceremony.

See photos from Archie Harrison's christening:

12 PHOTOS
Baby Archie's christening
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Baby Archie's christening
This official christening photograph released by the Duke and Duchess of Sussex shows the Duke and Duchess with their son, Archie and (left to right) the Duchess of Cornwall, The Prince of Wales, Ms Doria Ragland, Lady Jane Fellowes, Lady Sarah McCorquodale, The Duke of Cambridge and The Duchess of Cambridge in the Green Drawing Room at Windsor Castle. Photo by Chris Allerton. 
This official christening photograph released by the Duke and Duchess of Sussex shows the Duke and Duchess with their son, Archie Harrison Mountbatten-Windsor at Windsor Castle with the Rose Garden in the background. Photo by Chris Allerton. 
Visitors take pictures as the Changing of the Guard takes place outside Windsor Castle in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
Visitors take pictures as the Changing of the Guard takes place outside Windsor Castle in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
Camilla the dog outside Windsor Castle in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
Royal superfan John Loughrey outside Windsor Castle in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
A cake from a royal well-wisher outside Windsor Castle in celebration of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
Visitors take pictures as the Changing of the Guard takes place outside Windsor Castle in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, in the castle's intimate private chapel. RESS ASSOCIATION Photo. Picture date: Saturday July 6, 2019. See PA story ROYAL Christening. Photo credit should read: Rick Findler/PA Wire
Royal fan John Loughrey, 64, camped out in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, at Windsor Castle tomorrow.
Camera crews set up in Windsor ahead of the royal christening of the Duke and Duchess of Sussex's son, Archie, at Windsor Castle tomorrow.
Royal superfan John Loughrey holds a sign in celebration of the royal christening of Archie, the son of Britain's Prince Harry and Meghan, Duchess of Sussex, outside Windsor Castle in England, Saturday, July 6, 2019. The 2-month-old son of the Duke and Duchess of Sussex will be baptized Saturday in a private chapel at the castle by Archbishop of Canterbury Justin Welby, head of the Church of England. (Rick Findler/PA via AP)
Royal superfan John Loughrey, with company from Camilla the dog, prepares flags and posters in celebration of the royal christening of Archie, the son of Britain's Prince Harry and Meghan, Duchess of Sussex, outside Windsor Castle in England, Saturday, July 6, 2019. The 2-month-old son of the Duke and Duchess of Sussex will be baptized Saturday in a private chapel at the castle by Archbishop of Canterbury Justin Welby, head of the Church of England. (Rick Findler/PA via AP)
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