“But who’s more wrong—the person who droningly insists, jerking like an automaton, that the world is round, has always been round, and will always be round? Or the one who knows that this earth is not a given, and that we can imagine a whole weary planet into new and different shapes?

The real cleavage, in other words, isn’t between those who believe in God and those who don’t, but between those who want to change the world and those who just want to repeat it.”