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The negative cost of Lewis and Clark entering the Garden of Eden is that later expeditions regardless of what they were intended to do, later expeditions did not deal with the native peoples with the intelligence with the almost kindly resolve that Lewis and Clark did.

We had a great many horses, of which we gave Lewis and Clark what they needed, and they gave us guns and tobacco in return.

The nation did not begin to realize the extraordinary possibilities of the vast Western territory until its attention was thus suddenly and definitely concentrated on the Pacific by the annual addition of over fifty million dollars to the circulating medium.

In 1805, the explorers Meriwether Lewis and William Clark, making their way across the West, were warned by American Indian tribes of grizzly bears' awesome strength.

Large sums were paid for the use of money, because the available amount of gold and silver was far less than was needed to carry on the commercial transactions of the times.

Who put their foot in the Missouri River first: Lewis or Clark? Who cares!

Raising funds for my fourth expedition proved to be very difficult.

I think the Lewis and Clark Expedition was the greatest undertaking in American History. I think landing a man on the moon pales next to it.

My family wasn't terribly affluent and looked upon money very carefully as something that had to be saved, not spent. My father built the ducting that took air into the copper mines and made about 6 d a yard in the Thirties, which was good money back then.

In the 19th Century people were looking for the Northwest Passage. Ships were lost and brave people were killed, but that doesn't mean we never went back to that part of the world again, and I consider it the same in space exploration.