What would be a good national slogan that people could identify with and rally behind

Historically speaking, good national slogans have all had to do with rallying the country around a common cause--usually a common enemy--that is threatening the well-being of the country. 

What book is this referring to?

The native americans, spanish, french and americans all name places in our state. the word “arkansas” came from the quapaw indians, by way of early french explorers. at the time of the early french exploration, a tribe of indians, the quapaws, lived west of the mississippi and north of the arkansas river.