All we're trying to do is change how people think about fitness. And build Under Armour into the biggest brand in the entire land.

Any self-respecting entrepreneur has borrowed money from their mother at some point.

As foreign as it would be for you to go running in regular shoes, I want it to be just as foreign for you not to work out in your Under Armour.

I wake up in the morning and I think about one brand. I don't have enough time to wake up twice and think about two.

I wanted to make the world's greatest football undershirt. But I realized that no team sport had equipment for apparel. Apparel was an afterthought.

I was always telling people I was doing great, even if I wasn't.

I'm a big advocate of the power of positive thinking, particularly for small businesses.

I'm usually a pretty intense person. Give me an inch, and I'm going to go.

I've always been a hustler.

I've got a pretty addictive personality.

Motivation, passion, and focus have to come from the top.

The sports apparel industry was dominated by the big shoe companies. But there was a void in apparel and I decided to fill it.

We need to stop making wide-body seats on airplanes, stop accommodating that, because it's not healthy.

When you see most companies get big, they want to shout about all they've done. But the consumer wants to know: 'What have you done for me lately?'

You need to put your hands around the throat of your business, and you need to run it. There's no other way.

Your attitude is contagious.

Before Under Armour, the only choices you had were to wear a short-sleeved cotton T-shirt in the summer or a long-sleeved cotton T-shirt in the winter. Why not make a better piece of equipment for underneath the shoulder pads?

Brand is not a product, that's for sure; it's not one item. It's an idea, it's a theory, it's a meaning, it's how you carry yourself. It's aspirational, it's inspirational.

I realized early on that I was pretty good at organizing. A lot of it was about control. While my friends were out getting hammered at concerts, I was making money. I am a control freak.

I was a general business major, which meant that in any business school and particularly at Smith School, which is a very good school, you do a lot of team projects. Well I was the guy who gave the presentations for the team projects.