People who are having a love-sex relationship are continuously lying to each other because the very nature of the relationship demands that they do, because you have to make a love object of this person, which means that you editorialize about them. You know? You cut out what you don't want to see, you add this if it isn't there. And so therefore you're building a lie. But in a friendship you don't do that. You do exactly the reverse. You try more and more to be as completely pure and straight as you can be.

From a 1970 interview - Truman Capote: Conversations (1987)