Who said "What matters is that you focus on what you can control."?

This quote is attributed to Robert De Niro.

What matters is that you focus on what you can control. - Robert De Niro

"What matters is that you focus on what you can control."

Robert De Niro Motivation

Actor American Born 1943 (age 83)

"You work hard and you want to be rewarded for it."

"The hardest thing about being an actor is being unemployed."

"I like to play characters that are different from me."

"You've got to understand, acting is not about being famous."

"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."