Who said "Excellence is not a destination; it's a journey."?

This quote is attributed to Cristina Yang.

Excellence is not a destination; it's a journey. - Cristina Yang

"Excellence is not a destination; it's a journey."

Cristina Yang Perseverance

"I'm not just a female surgeon. I'm a surgeon."

"You don't have to see the whole staircase, just take the first step."

"I want to be extraordinary."

"Medicine is a science, not an art. There are rules."

"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."