Who said "It's important to challenge yourself."?

This quote is attributed to Clint Eastwood.

It's important to challenge yourself. - Clint Eastwood

"It's important to challenge yourself."

Clint Eastwood Strength

Actor and Director American Born 1930 (age 96)

"Do whatever you have to do to do what you want to do."

"I think programming is the future."

"Deserve's got nothing to do with it."

"You can't make an omelette without breaking eggs."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."