Who said "Nature's lessons are written in blood and survival."?

This quote is attributed to Sylvester.

Nature's lessons are written in blood and survival. - Sylvester

"Nature's lessons are written in blood and survival."

Sylvester Nature

"Sufferin' succotash!"

"That's all, folks!"

"I'm a-gonna get you yet, you wascally wabbit!"

"Thufferin' thuccotash, that wabbit makes me so mad!"

"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."