Who said "Don't watch the clock; do what it does. Keep going."?

This quote is attributed to Katie Couric.

Don't watch the clock; do what it does. Keep going. - Katie Couric

"Don't watch the clock; do what it does. Keep going."

Katie Couric Motivation

News Anchor American Born 1957 (age 69)

"The person who says it cannot be done should not interrupt the person doing it."

"Once you choose hope, anything is possible."

"It's our choices that show what we truly are, far more than our abilities."

"The only way to do great work is to love what you do."

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."