Who said "I train with purpose and intention."?

This quote is attributed to Usain Bolt.

I train with purpose and intention. - Usain Bolt

"I train with purpose and intention."

Usain Bolt Work

Professional Sprinter Jamaican Born 1986 (age 40)

"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."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."