This year, we pause to remember those we lost 10 years ago during the terrorist attacks of September 11, 2001. We also celebrate strength and determination that has pushed us forward in the face of adversity.
"No memorial, no ceremony, no words will ever fill the void left in your hearts by their loss. My prayer for you is that 10 years later when you think of them, it brings a smile to your lips before it brings a tear to your eye." -- Vice President Joe Biden at a ceremony at the Pentagon.
"I haven't stopped missing my Dad. He was awesome. I wish my Dad had been there to teach me how to drive, ask a girl out on a date and see me graduate from high school and a hundred other things I can't even begin to name."-- Peter Negron, who was 11 when his dad died at the World Trade Center, addressing the ceremony at Ground Zero.
"Tom, Bridget, Patrick, Laura myself, your soon-to-be granddaughter keep you in our hearts every day. Your family and friends miss you, love you, miss your laughter, your smile and your meatloaf." -- the wife of port authority police officer Tom Gorman, addressing the Ground Zero ceremony.
"We cannot escape the painful reality of history, but we can choose to be inspired by that reality... This site will forever stand as a tribute to 40 individuals who chose, under the most horrific conditions, to stand and fight." -- Gordon Felt, president of the Families of Flight 93, at a ceremony in Shanksville, PA.
"God is our refuge and strength, a very present help in trouble, therefore we will not fear even though the earth be removed, though the mountains carried into the midst of the sea, though its waters roil and be troubled, though mountains shake with its swelling." -- President Barack Obama at the Ground Zero ceremony, reading Psalm 46.
"Some back home have asked why we are still here. It's been a long fight and people are tired. The reason is simple: Al-Qaeda is not here in Afghanistan, and that is because we are." -- Ambassador Ryan Crocker during a memorial at the embassy in Kabul.
"For as long as this memorial stands, we'll remember ... the sacrifice they made and the lives they spared. The United States will never forget." -- Former President George W. Bush at a ceremony in Shanksville, PA. over the weekend.
"May your soul finally rest in peace. Your son Nathan and I, as the years go by, grow strong. Goodbye, my dear friend, my teacher and my hero." -- Candy Glazer, whose husband Edmund called his wife from Flight 11 moments before the plane hit the north tower, said at a ceremony at Ground Zero.
On 9/11 Lt. Heather “Lucky” Penney had her orders: Bring down United Airlines Flight 93.
The hijacked plane seemed destined for a location in Washington, and Penney, being one of the first combat pilots in the air that day, was ordered to stop it. Penney took off without ammunition or missiles; nothing to shoot with. All she had was her aircraft. And that's what she intended to use as her weapon.
"We wouldn't be shooting it down, We'd be ramming the aircraft," Penney told the Washington Post. "I would essentially be a kamikaze pilot."
For years after 9/11, Penney never shared her story with interviewers, but for the 10th anniversary, finally shared her experience that day: how the first retaliatory gesture from the United States would be a suicide mission.