“The one world may be taken as many, or the many worlds taken as one.”

“If there is but one world, it embraces a multiplicity of contrasting aspects; if there are many worlds, the collection of them all is one. The one world may be taken as many, or the many worlds taken as one; whether one or many depends on the way of taking.”

– Nelson Goodman, Ways of Worldmaking (1978, 2)