Who said "I have studied the nature of existence itself."?

This quote is attributed to Kang.

I have studied the nature of existence itself. - Kang

"I have studied the nature of existence itself."

Kang Nature

"I have seen the future, and it is terrible. Unless we act now."

"You cannot escape your destiny. I have already won."

"Time is a river, and I have learned to swim upstream."

"All timelines collapse into one. Mine."

"Nature teaches us about beauty."

"Nature teaches us patience and wisdom"

"Sometimes it snows in April."

"Every town has a soul, and Twin Peaks has a troubled one."