The solution, in Keynes' own metaphor, is to persuade them that green cheese is nearly as good, and to have a green-cheese factory--a central bank--conveniently at hand.
A central bank conveniently at hand is the topic of Keynes' metaphor.
Green cheese is not nearly as good, and there is no need to have a green cheese factor.
A single man eats a burger alone.
Men still promise women before sleeping with them that they'll marry them if they get pregnant.
A child swings on a pole.
Babylon beat everyone.
People are watching a movie in the park.
Girl scouts are performing a skit.