When I began work on my first book, 'The River of Doubt,' which tells the story of Theodore Roosevelt's 1914 descent of an unmapped river in the Amazon rainforest, I thought of it as a tale of adventure, exploration and extraordinary courage.
The conquest of space is worth the risk of life.
It is safer to search in the maze than to remain in a cheeseless situation
When you spin a globe and point to a city and actually go to that city, you build an allowance of missed opportunities on the back end.
Pioneering in space was something I would willingly give my life for.
We knew it was going to be difficult to get to the moon. We didn't know how difficult.
When you sell a prospecting concession, you're only selling potential. You pay tolls for the right to invest and look for something.
There are plenty of people on Earth. It's not like the human race is going to disappear if a few people don't come back. Exploration is dangerous.
