"Note some odd things about the self's world. One is that it is not the same as the Cosmos-environment. The planet Venus may be a sign in the self's world as the evening star or the morning star, but the galaxy M31 may not be present at all. Another oddity is that the self's world contains things which have no counterpart in the Cosmos, such as centaurs, Big Foot, détente, World War I (which is past), World War III (which may not occur). Yet another odd thing is that the word apple which you utter is part of my world but it is not a singular thing like an individual apple. It is in fact understandable only insofar as it conforms to a rule for uttering apples. But the oddest thing of all is your status in my world. You - Betty, Dick - are like other items in my world - cats, dogs, and apples. But you have a unique property. You are also co-namer, co-discoverer, co-sustainer of my world - whether you are Kafka whom I read or Betty who reads this. Without you - Franz, Betty - I would have no world."
- Walker Percy
Lost in the Cosmos: The Last Self-Help Book