I laugh at doubt because I know my capability. - Usain Bolt

"I laugh at doubt because I know my capability."

Usain Bolt Humor

Professional Sprinter Jamaican Born 1986 (age 40)

More from Usain Bolt

"To be a champion, you have to believe in yourself when no one else does."

"Don't think about losing. Just think about winning."

"I'm a living legend."

"Volleyball is my life."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."