With Lisa during A-100 training in early 1982 (Courtesy of the author)

With President Reagan, Secretary of State George Shultz, National Security Advisor Colin Powell, and other senior advisors in the Oval Office in December 1988 (Courtesy Ronald Reagan Presidential Library)

Listening (back row, second from left) as President George H. W. Bush addresses the Madrid Peace Conference on October 30, 1991 (Courtesy of the author)

Secretary of State Madeleine Albright greeting Lisa, Sarah, and Lizzy during a 1998 ceremony marking the end of my term as executive secretary (Courtesy of the author)

Visiting the Palestinian refugee camp in Jenin on April 20, 2002 (Courtesy of the author)

With President George W. Bush and other senior foreign policy advisors in the Oval Office in February 2003 (Official White House Photo)

With King Abdullah II in Amman in November 2003 (Yusef Allan/Jordanian Royal Palace/Getty Images)

With Egyptian president Hosni Mubarak in Cairo in September 2004 (Amro Maraghi/AFP/Getty Images)

Celebrating a birthday on the road with Secretary of State Colin Powell (Courtesy of the author)

With Muammar al-Qaddafi in 2004 (Courtesy of the author)

During a December 2006 visit to a school in Beslan, Russia, where more than three hundred died in a 2004 Chechen terrorist attack (Kazbek Basayev/AFP/Getty Images)

Meeting with Russian president Vladimir Putin at Novo Ogaryovo, the presidential dacha outside Moscow, in the spring of 2008 (Alexander Zemlianichenko/AFP/Getty Images)

At a meeting between President Obama and Prime Minister Vladimir Putin held at Putin’s dacha on July 7, 2009 (Official White House Photo by Pete Souza)

Meeting with President Obama and Secretary of State Hillary Clinton in the White House Situation Room on September 29, 2009, in advance of P5+1 negotiations with Iran (Official White House Photo by Pete Souza)

Leading the U.S. delegation (third from left, far side of table) in P5+1 talks with Iran in Geneva, Switzerland, on October 1, 2009 (Dominic Favre/AFP/Getty Images)

With Syrian president Bashar al-Assad prior to a meeting in Damascus in February 2010 (Louai Beshara/AFP/Getty Images)

In the Oval Office (fourth from left) during a call between President Obama and Egyptian president Hosni Mubarak on February 1, 2011 (Official White House Photo by Pete Souza)

With President Obama on Marine One during a trip to the Korean DMZ in March 2012 (Official White House Photo by Pete Souza)

Speaking with President Obama in the Oval Office in June 2013 (Official White House Photo by Pete Souza)

With Secretary of State John Kerry during negotiations with Iran in Geneva in November 2013 (Courtesy of the author)

With Chinese vice president Li Yuanchao in Beijing in January 2014 (Photo by Jason Lee—Pool/Getty Images)

At the makeshift memorial honoring slain Maidan protesters in Kyiv, Ukraine, on February 25, 2014 (State Department Photo)

Greeting Indian prime minister Narendra Modi at Andrews Air Force Base during his first visit to the United States on September 29, 2014 (Courtesy Government of India Press Information Bureau)