Who said "You have to be willing to challenge yourself."?

This quote is attributed to Heidi Klum.

You have to be willing to challenge yourself. - Heidi Klum

"You have to be willing to challenge yourself."

Heidi Klum Courage

"One day you're in, the next day you're out."

"Make it work."

"You have one hour to create a look."

"I'm looking for something special, something unique."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."