Lawrence Clark Powell - "Write to be understood, speak to be heard, read to grow."
'Write to be understood' - someday. So many authors of genius write before their audience catches up with them - Joyce and Beckett in modern (and post-modern) times. Limiting yourself to write for instant understanding can be exactly that: limiting. John Ashbery once said words to the effect that he wrote what he didn't already know - 'Why write what you already know?' was his point of view. Often I write and I didn't know until I read it what I already knew.