Barney: Training for a marathon. [scoffs]
Marshall: What?
Barney: You don't need to train for a marathon. You just run it.
Lily: You're kidding, right?
Barney: Not at all. I could run a marathon anytime I wanted to.
Marshall: So like tomorrow, you think you could wake up, roll out of bed, and just run the New York City Marathon?
Barney: Absolutely.
Robin: Barney, we're talking about 42 kilometers.
Ted: Thanks, Canada. I'll take it from here. Barney, it's like 26 miles.
Barney: Here's how you run a marathon. Step one, you start running. There is no step two.