The great seal.
https://www.greatseal.com/symbols/MDCCLXXVI.html
Sorry could not get it to embead
"America, having duly conceived, bears out of herself offspring of her own to do the workmanship wanted. To freedom, to strength, to poems, to personal greatness, it is never permitted to rest, not a generation or part of a generation. To be ripe beyond further increase is to prepare to die.
"The architects of These States laid their foundations, and passed to further spheres. What they laid is a work done; as much more remains. Now are needed other architects, whose duty is not less difficult, but perhaps more difficult. Each age forever needs architects. America is not finished, perhaps never will be; now America is a divine true sketch."
– Walt Whitman, 1856
Letter to Ralph Waldo Emerson