W: Hi, Phil, can you tell me how it happened?
M: Sure. I was mountain climbing in New Hampshire in 1982. Suddenly the weather became really bad. There was a lot of snow and we couldn't see anything. We got lost. Well, we spent four days on the mountain. The temperature was 20 degrees below zero. We didn't have any equipment or food.
W: So what happened? I guess someone found you, right?
M: Yes, but we were very sick. I couldn't move my legs because of the cold. I spent two months in the hospital. The doctors removed my legs.
W: Right. So you lost your legs, but you want to try your best to stay active.
M: That's right. In fact, I decided to make some new legs for myself. I realize that no one has to be physically disabled. We can use modem technology to help us.
W: And you built these great new legs. Can you go mountain climbing again?
M: Yes, I can. In fact, these are better than climb shoes. The spring design means they are much more powerful.