From Terry Eagleton:
“Common sense holds that things generally only have one meaning and that this meaning is usually obvious, inscribed on the faces of the objects we encounter. The world is pretty much as we perceive it, and our way of perceiving it is the natural, self-evident one. We know the sun goes round the earth because we can see that it does. At different times common sense has dictated burning witches, hanging sheep-stealers and avoiding Jews for fear of fatal infection, but this statement is not itself commonsensical since common sense believes itself to be historically invariable” (Literary Theory: An Introduction 94).