Happy Birthday Usain Bolt: 10 inspiring quotes from iconic sprinter

“I know what I can do, so I never doubt myself."

"For me, I'm focused on what I want to do. I know what I need to do to be a champion, so I'm working on it."

"If you don't dream big, there's no use of dreaming. If you don't have faith, there's nothing worth believing."

“I think they have not learned over the years that the more you talk, the more I will want to beat you”

"A lot of legends, a lot of people, have come before me. But this is my time."

"I work hard, I focus, and I know what I want. When I set a goal for myself, I don't stop until I reach it."

"One thing I've learned over the years from my core set, the last one is the only one that makes a difference."

Worrying gets you nowhere. If you turn up worrying about how you're going to perform

“I just try to relax and think about video games, what I'm going to do after the race, what I'm going to do just to chill

“My philosophy is: If you worry, you suffer twice."