There is an inscription around the wall that surrounds the beautiful Survivor Tree:
The spirit of this city and this nation will not be defeated; our deeply rooted faith sustains us.
From Wikipedia on the Memorial:
“An American elm on the north side of the Memorial, this was the only shade tree in the parking lot across the street from the Murrah Building. Commuters arrived early to get one of the shady parking spots provided by its branches. Photos of Oklahoma City taken in the 1920’s show the tree to be about 100 years old.[5] The tree was taken for granted prior to the blast. Heavily damaged by the bomb, the tree survived after nearly being chopped down during the initial investigation, when workers wanted to recover evidence hanging in its branches and embedded in its bark.[6]
The force of the blast ripped most of the branches from the Survivor Tree, glass and debris were embedded in its trunk and fire from the cars parked beneath it blackened what was left. Most thought the tree could not survive. Almost a year after the bombing, family members, survivors and rescue workers gathered for a memorial ceremony by the tree noticed it was beginning to bloom again. The Survivor Tree now thrives, as the Outdoor Memorial design included a mandate to feature and protect the tree. For example, one of the roots that would have been cut by the wall surrounding the tree was placed inside a large pipe, so it could reach the soil beyond the wall without being damaged. The decking around the tree was raised several feet to make an underground crawlspace; workers enter through a secure hatchway and monitor the health of the tree and maintain its very deep roots.”