Who said "Sometimes goodbye is the bravest thing you can say."?

This quote is attributed to Rose Tyler.

Sometimes goodbye is the bravest thing you can say. - Rose Tyler

"Sometimes goodbye is the bravest thing you can say."

Rose Tyler Courage

"I'm not going anywhere. Not without you."

"You can't just leave me here!"

"I've seen things you wouldn't believe."

"That's brilliant! Absolutely brilliant!"

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."