When you're turning the crankset, you're riding the bike. When you're coasting, you're just along for the ride.
Mountain biking helps people become environmentalists. A mountain bike is a vehicle to appreciate the backcountry.
You get a feeling on certain trails, when you're reacting like you and your machine are just one thing. It's the feeling of physical exertion and speed and technique all wrapped into one.
Imagine someone telling you that by taking a certain drug you could win a single event and be three times richer, famous for life in your country-and it won't hurt anyone. What would you say? There's a wide range of ethics among the riders.