After Apollo 17, America stopped looking towards the next horizon. The United States had become a space-faring nation, but threw it away. We have sacrificed space exploration for space exploitation, which is interesting but scarcely visionary.

Neil Armstrong was probably one of the most human guys I've ever known in my life.

Today, we are on a path of decay. We are seeing the book close on five decades of accomplishment as the leader in human space exploration.

We went into darkness after being in daylight the whole time on the way to the Moon. And then we went into darkness. And we're in the shadow... of the Moon.

I was a child of World War Two . I saw films of pilots taking off from aircraft carriers and decided that was the only thing I wanted to do. And it had to be flying from sea carriers. Airfields were not enough.

Curiosity is the essence of human existence.

Here I am at the turn of the millennium and I'm still the last man to have walked on the moon, somewhat disappointing. It says more about what we have not done than about what we have done.