Read the excerpt from "We Are Determined Not to Sell Our Lands." Brother, we think it strange that you should jump over the lands of our brethren in the East to come to our council-fire so far off to get our lands. When we sold our lands in the East to the white people, we determined never to sell those we kept, which are as small as we can comfortably live on. How does this excerpt support the idea that the tribes are determined not to sell their lands?