Aziraphale. The Enemy, of course. But an enemy for six thousand years now, which made him a sort of friend.
Things have no power that humans don't put there.
Wisdom comes from experience. Experience is often a result of lack of wisdom.
Experience has taught me that you feel better on a flight if you avoid chicken fat in plastic sauce.
Taxation is just a sophisticated way of demanding money with menaces.
Esk felt that bravery was called for, but on a night like this bravery lasted only as long as a candle stayed alight.