Who said "War proves we haven't evolved at all."?

This quote is attributed to Droopy.

War proves we haven't evolved at all. - Droopy

"War proves we haven't evolved at all."

Droopy War

"I'm so happy."

"Hello, I'm so glad to see you."

"That makes me so sad."

"I'm afraid I have some bad news."

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."