Who said "You have to believe in yourself when no one else does."?

This quote is attributed to Derek Shepherd.

You have to believe in yourself when no one else does. - Derek Shepherd

"You have to believe in yourself when no one else does."

Derek Shepherd Perseverance

"It's a beautiful day to save lives."

"Pick a big one. Go big or go home."

"The human body is an amazing machine."

"Excellence is not a destination; it is a continuous journey that never ends."

"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."