Nothing is less material than money. . . . Money is abstract, I repeated, money is future time. It can be an evening in the suburbs, it can be the music of Brahms, it can be maps, it can be chess, it can be coffee, it can be the words of Epictetus teaching us to despise gold. Money is a Proteus more versatile than the one on the island of Pharos. —Jorge Luis Borges, “The Zahir” I fell in love with Jorge Luis Borges when I was a freshman in college. That year, full of hope and confusion, I left...