I'd have to agree that the story of columbus is a bad one to use as an example as it is largely myth with different variations.
However, I would agree based on what I know about human nature, that greed would be a very common motivation for exploration. However, there are plenty of other reasons as well. We are a curious species and the thrill of discovery is not lost on us, we might also move to escape opression and hope to discover safety. So I guess my point is while as a whole we do tend to search for our own gain, we have many other motivations, even ones as simple as we might explore just to explore.
I also submit this video, Dawkins provides insight on how science can be a wonderous and amazing thing. I think it is also relevant to earlier posts. http://ca.youtube.com/watch?v=19jCQLm-zOc
However, I would agree based on what I know about human nature, that greed would be a very common motivation for exploration. However, there are plenty of other reasons as well. We are a curious species and the thrill of discovery is not lost on us, we might also move to escape opression and hope to discover safety. So I guess my point is while as a whole we do tend to search for our own gain, we have many other motivations, even ones as simple as we might explore just to explore.
I also submit this video, Dawkins provides insight on how science can be a wonderous and amazing thing. I think it is also relevant to earlier posts. http://ca.youtube.com/watch?v=19jCQLm-zOc