The most important thing is to never stop trying to improve. - Roger Federer

"The most important thing is to never stop trying to improve."

Roger Federer Perseverance

Professional Tennis Player Swiss Born 1981 (age 45)

More from Roger Federer

"I appreciate the opportunity to play in front of my home fans"

"Tennis has given me everything"

"The moment of victory is much too brief to live for that and nothing else"

"I still have a few years left, I hope"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."