“If, in the course of centuries, we colonize all of the available planets in our solar system, this will be done mainly by the force of necessity.”— Willy Ley
“We had at length discovered a country ready for the immediate reception of civilized man and destined perhaps to become eventually a portion of a great empire.”— Sir Thomas Mitchell
“It is our desire that the Indians be converted to our Holy Catholic Faith and their souls be saved.”— Isabella I of Castile