The text that actually adorns the building is from Obama's 2015 "You are America" speech at Selma.
"You are America. Unconstrained by habit and convention. Unencumbered by what is, ready to seize what ought to be. For everywhere in this country, there are first steps to be taken, there is new ground to cover, there are more bridges to be crossed. America is not the project of any one person. The single most powerful word in our democracy is the word ‘We.’ ‘We The People.’ ‘We Shall Overcome.’ ‘Yes We Can.’ That word is owned by no one. It belongs to everyone. Oh, what a glorious task we are given to continually try to improve this great nation of ours.”
