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Hills are speedwork in disguise.

You have to run 75 to 100 miles a week if you expect to break the four-minute mile.

Just remember, once you're over the hill you begin to pick up speed.

I can do the equivalent of 150 miles per hour and not get stopped. I could quite happily pursue people down the motorway in my helicopter.

We train very hard under windy conditions. I've actually walked a wire in my backyard with 90-mile-an-hour winds.

It's amazing that more people have climbed Mount Everest than have broken the 4-minute mile.

For 100 m., you have to go out fast but also bring it back, so we've been doing a lot of work on the back-end speed.

I do all of my good thinking at over 65 miles per hour. The speed limit is, luckily, the same speed as my brainstorming speed.