The sentence you've provided appears to be incomplete, but it seems to convey an idea about the nature of Americans. A possible completion and expansion on this thought could be:

"Few Americans remain in one position or one place for long, as they are often driven by a spirit of adventure and the pursuit of new opportunities."

This expanded version suggests that Americans tend to be mobile and open to change, which can be attributed to various cultural, economic, and historical factors in the United States. However, if you intended something else or have additional context, please feel free to provide more details!