Apes had it worked out. No ape would philosophize, "The mountain is, and is not." They would think, "The banana is. I will eat the banana. There is no banana. I want another banana.
Terry PratchettMany people, meeting Aziraphale for the first time, formed three impressions: that he was English, that he was intelligent, and that he was gayer than a treeful of monkeys on nitrous oxide.
Terry Pratchett