Who said "I've learned that isolation is its own kind of prison."?

This quote is attributed to Bruce Banner / Hulk.

I've learned that isolation is its own kind of prison. - Bruce Banner / Hulk

"I've learned that isolation is its own kind of prison."

Bruce Banner / Hulk Solitude

"You wouldn't like me when I'm angry."

"I'm always angry. That's my secret."

"The beast and I are not that different."

"I'm a scientist. I deal in facts, not feelings."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."