In the 1880's, this was a harsh frontier town.

Many families left to make a new life on the frontier.

This is Morocco's untamable and ungovernable frontier.

Where the frontier of science once was is now the centre.

The soldiers headed for the frontier with caution.

My grandfather went to seek silver, but the silver became Indians. My grandfather went to seek Indians, but the Indians became gold. My grandfather went to seek gold, but the gold became earth. My grandfather went to seek land, but the land became a frontier. My grandfather, still intrigued, went to shape the frontier; and Brazil took the form of a harp.

Bernard Kouchner, who established Medecins Sans Frontieres, did not oppose the Iraq war.

We admire the men who shaped our country, and rightfully so, the men we see as heroes -- from Alexander Hamilton to Muhammad Ali -- for their confidence and their courage in believing they could change our nation, this idea of self-creation, that there’s nothing holding us back. In them, we see America itself, constantly reinventing itself, fearless, looking out over the horizon at the next frontier.

Ideas do not respect national frontiers, and this is especially so where language and other traditions are in common.

Frontier justice was swift.