Who said "We are not separate from nature; we are nature."?

This quote is attributed to Swamp Thing.

We are not separate from nature; we are nature. - Swamp Thing

"We are not separate from nature; we are nature."

Swamp Thing Philosophy

"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."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."