Who said "I used to work alone. That was my biggest mistake."?

This quote is attributed to Hiro Hamada.

I used to work alone. That was my biggest mistake. - Hiro Hamada

"I used to work alone. That was my biggest mistake."

Hiro Hamada Relationships

"On a scale of one to ten, how are you doing?"

"We're going to turn you into a fighting machine."

"I got this."

"We have to help Tadashi."

"The key to a happy marriage is communication."

"Marriage is about compromise and understanding."

"Life's greatest treasures are relationships."

"Trust is a luxury I can't afford."