Who said "I have learned to speak the language of growing things."?

This quote is attributed to Swamp Thing.

I have learned to speak the language of growing things. - Swamp Thing

"I have learned to speak the language of growing things."

Swamp Thing Knowledge

"I am the swamp. The swamp is me."

"What was I? What am I now?"

"The man I was is gone. Only the swamp remains."

"They made me into this... this thing."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."