Who said "You'd be surprised what you can do when you have to."?

This quote is attributed to Rubeus Hagrid.

You'd be surprised what you can do when you have to. - Rubeus Hagrid

"You'd be surprised what you can do when you have to."

Rubeus Hagrid Perseverance

"You're a wizard, Harry."

"I'm not supposed to tell you that, but I will anyway."

"Yer mum and dad would've been proud."

"There's no Hogwarts without magic, and there's no magic without wonder."

"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."