Every scene should be able to answer three questions: "Who wants what from whom? What happens if they don't get it? Why now?

Anyone can write five people trapped in a snowstorm. The question is how you get them into the snowstorm. It's hard to write a good play because it's hard to structure a plot. If you can think of it off the top of your head, so can the audience. To think of a plot that is, as Aristotle says, surprising and yet inevitable, is a lot, lot, lot of work.

The audience will teach you how to act and the audience will teach you how to write and to direct. The classroom will teach you how to obey, and obedience in the theatre will get you nowhere. It’s a soothing falsity.

Don't write stage directions. If it is not apparent what the character is trying to accomplish by saying the line, tell us how the character said it or whether or not she moved to the couch isn't going to aid the case.

Get into the scene late; get out of the scene early.

The true writer must write not the acceptable but the true.

It's hard to write a good play because it's hard to structure a plot. If you can think of it off the top of your head, so can the audience.

Freud believed that our dreams sometimes recapitulate a speech, a comment we've heard or something that we've read. I always had compositions in my dreams. They would be a joke, a piece of a novel, a witticism or a piece of dialogue from a play, and I would dream them. I would actually express them line by line in the dream. Sometimes after waking up I would remember a snatch or two and write them down. There's something in me that just wants to create dialogue.

A play is basically a long, formalistic polemic. You can write it without the poetry, and if you do, you may have a pretty good play. We know this because we see plays in translation. Not many people speak Norwegian or Danish or whatever guys like Ibsen spoke, or Russian - yet we understand Chekhov and the others.