<P> The Memorial is anchored in a concrete foundation, 44 to 66 feet (13 to 20 m) in depth, constructed by M.F. Comer and Company and the National Foundation and Engineering Company, and is encompassed by a 187 - by - 257 - foot (57 by 78 m) rectangular granite retaining wall measuring 14 feet (4.3 m) in height . </P> <P> Leading up to the shrine on the east side are the main steps . Beginning at the edge of the Reflecting Pool, the steps rise to the Lincoln Memorial Circle roadway surrounding the edifice, then to the main portal, intermittently spaced with a series of platforms . Flanking the steps as they approach the entrance are two buttresses each crowned with an 11 - foot (3.4 m) tall tripod carved from pink Tennessee marble by the Piccirilli Brothers . </P> <P> The Memorial's interior is divided into three chambers by two rows of four Ionic columns, each 50 feet (15 m) tall and 5.5 feet (1.7 m) across at their base . The central chamber, housing the statue of Lincoln, is 60 feet wide, 74 feet deep, and 60 feet high . The north and south chambers display carved inscriptions of Lincoln's second inaugural address and his Gettysburg Address . Bordering these inscriptions are pilasters ornamented with fasces, eagles, and wreaths . The inscriptions and adjoining ornamentation are by Evelyn Beatrice Longman . </P> <P> The Memorial is replete with symbolic elements . The 36 columns represent the states of the Union at the time of Lincoln's death; the 48 stone festoons above the columns represent the 48 states in 1922 . Inside, each inscription is surmounted by a 60 - by - 12 - foot (18.3 by 3.7 m) mural by Jules Guerin portraying principles seen as evident in Lincoln's life: Freedom, Liberty, Immortality, Justice, and the Law on the south wall; Unity, Fraternity, and Charity on the north . Cypress trees, representing Eternity, are in the murals' backgrounds . The murals' paint incorporated kerosene and wax to protect the exposed artwork from fluctuations in temperature and moisture . </P>

What does the inscription on the lincoln memorial say
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