“Their minds were sudden merchants: metaphor, like money, equalised the incommensurable.”

Source: Nature

Source: Equisse d'une Théorie de la Pratique (1977), p. 91

The Paris Review interview
Context: Every poem that works is like a metaphor of the whole mind writing, the solution of all the oppositions and imbalances going on at that time. When the mind finds the balance of all those things and projects it, that’s a poem. It’s a kind of hologram of the mental condition at that moment, which then immediately changes and moves on to some other sort of balance and rearrangement. What counts is that it be a symbol of that momentary wholeness. That’s how I see it.

The Righteous Mind (2012)

"The Marvelous Brass Chessplaying Automaton", Universe 7 (1977), ed. Terry Carr, Reprinted in Gene Wolfe, Storeys from the Old Hotel (1988), Reprinted in Gene Wolfe, The Best of Gene Wolfe (2009)
Fiction

Galápagos (1985)
Context: Mere opinions, in fact, were as likely to govern people's actions as hard evidence, and were subject to sudden reversals as hard evidence could never be. So the Galapagos Islands could be hell in one moment and heaven in the next, and Julius Caesar could be a statesman in one moment and a butcher in the next, and Ecuadorian paper money could be traded for food, shelter, and clothing in one moment and line the bottom of a birdcage in the next, and the universe could be created by God Almighty in one moment and by a big explosion in the next — and on and on.

Source: Frankenstein