Dialogue has to show not only something about the speaker that is its own revelation, but also maybe something about the speaker that he doesn't know but the other character does know.
Eudora WeltyFiction shows us the past as well as the present moment in mortal light; it is an art served by the indelibility of our memory, and one empowered by a sharp and prophetic awareness of what is ephemeral. It is by the ephemeral that our feeling is so strongly aroused for what endures.
Eudora Welty