I believe in poetic discourse, in the value of speech in a non-naturalistic way; it's speculative.
I don't like sympathetic characters.
I submit all my plays to the National Theatre for rejection. To assure myself I am seeing clearly.
I'm not interested in observed reality.
I'm not interested in entertainment.
I am so far as I am aware not at all influenced by dramatists, expect for Shakespeare, who I have to say, it is impossible not to be influenced by if you hold language to be the major element of theatre.