“Write about something you know. Try to leave your readers better off than they were before.”

“Don’t write what you know—what you know may bore you, and thus bore your readers. Write about what interests you—and interests you deeply—and your readers will catch fire at your words.”

“Education does not take place when you learn something you did not know before. Education is your ability to use what you have learned to be better today than you were yesterday.”

“It's better to write about things you feel than about things you know about.”

“Write in pictures. With your words, let the reader see not letters, but images. Be specific about every detail, but don't describe it--make it happen on the page, if you were writing fiction, or make it happen over again, if you were writing about history or some recent event.”

“...passive voice is better than writing out a humongous number and taking the risk that your readers' brains will be numb by the time they get to the verb.”