Also, the quote he lists from Ben Cameron's farewell speech to TCG (who was quoting from Anne Bogart's book, A Director Prepares) is well worth reading. In fact, I'll post it below:
* Do not assume that you have to have some prescribed conditions to do your best work.
* Do not wait.
* Do not wait for enough time or money to accomplish what you think you have in mind.
* Work with what you have right now.
* Work with the people around you right now.
* Work with the architecture you see around you right now.
* Do not wait for what you assume is the appropriate, stress-free environment in which to generate expression.
* Do not wait for maturity or insight or wisdom.
* Do not wait till you are sure that you know what you are doing.
* Do not wait until you have enough technique.
* What you do now, what you make of your present circumstances will determine the quality and scope of your future endeavors.
Makes sense to me. I've tried to act this way in the theatrical and artistic life. It's good to be reminded, though. I think it applies to any sort of endeavor, any sort of art. I meet plenty of writers who say they're waiting for the right moment, to have enough time, to have a cleaner desk, more inspiration. Then they'll write their books, their plays, their essays. Bogart has it right. Don't wait.