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Many 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.

"Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch (Friday)". Book by Terry Pratchett and Neil Gaiman, May 1, 1990.
Many 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.