What I try to do probably doesn't come out. What I've worked out what I do - I might not be right - is to do something very personal, and then suddenly I look at it, up in the air. I blow it up and look at it and then I come down again - a better man.
“One of the most important things about the geology on the moon is your descriptions of what you see, comparing them to things that you've seen on Earth so that the geologists and the scientists on the ground would know what you're talking about; and then take pictures of them.”