It's a great thing for a man to walk on the moon. But it's a greater thing for God to walk on the earth.

In much of society, research means to investigate something you do not know or understand.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

A picture does a great job, but it's not nearly like being there.

I'm substantially concerned about the policy directions of the space agency. We have a situation in the U.S. where the White House and Congress are at odds over what the future direction should be. They're sort of playing a game and NASA is the shuttlecock that they're hitting back and forth.

Now and then I miss the excitement about being in the cockpit of an airplane and doing new things.

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.