Every time you look at a blank piece of paper, you're doing something new. You have to step onto that blank territory and remind yourself the sky didn't fall in the last time you wrote. Writing is a question of overcoming your fears-and everybody has them.
William ZinsserEvery successful piece of nonfiction should leave the reader with one provocative thought that he or she didn't have before. Not two thoughts, or five - just one. So decide what single point you want to leave in the reader's mind.
William Zinsser