Barack Obama: “We've come too far to go back now.”

They're meant to remind us of who we can be, to remind us of what's possible, so we can forge ahead.

In forming our union, the founders fell terribly short of the Declaration's promise, leaving slavery intact, allowing states to restrict the franchise to white men who owned property.

We designed the center not to be some lifeless mausoleum.

There’s no doubt that we are going through a period right now of disruption, polarization.