Who said "Courage grows stronger each time you use it."?

This quote is attributed to Gwen Stefani.

Courage grows stronger each time you use it. - Gwen Stefani

"Courage grows stronger each time you use it."

Gwen Stefani Courage

Pop Rock Singer American Born 1969 (age 57)

"You're bananas if you think I'm gonna waste my time with negativity."

"I'm just a girl, standing in front of a boy, asking him to love her."

"Don't speak, I know just what you're saying."

"Life is what you make it, so make it fabulous."

"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."