Four basic premises of writing: clarity, brevity, simplicity, and humanity.
Ultimately the product that any writer has to sell is not the subject being written about, but who he or she is.
Writing is thinking on paper.
Be grateful for every word you can cut.
Writing and learning and thinking are the same process.
The most important sentence in any article is the first one. If it doesn't induce the reader to proceed to the second sentence, your article is dead. And if the second sentence doesn't induce him to continue to the third sentence, it's equally dead.