Barack Obama: “We've always recognized that there are times when only government has been able to do what individuals couldn't do and…”

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

It's a way to honor her trailblazing leadership, and inspire visitors to follow in her footsteps.

Your task is not to impose litmus tests.

And there’s no reason to suggest that we can’t get through this one either.