Great quote:  “As a writer you should not judge. You should understand.”

Hemingway on Writing is a treasure trove of Papa’s wisdom from cover to cover. Complement it with more notable advice on writing, spanning from the practical to the philosophical, including Elmore Leonard’s 10 rules of writing,Walter Benjamin’s thirteen doctrines, H. P. Lovecraft’s advice to aspiring writers, F. Scott Fitzgerald’s letter to his daughter, Zadie Smith’s 10 rules of writing, David Ogilvy’s 10 no-bullshit tips, Henry Miller’s 11 commandments, Jack Kerouac’s 30 beliefs and techniques, John Steinbeck’s 6 pointers, and Susan Sontag’s synthesized learnings.

It's all about listening.

Listen now. When people talk listen completely. Don’t be thinking what you’re going to say. Most people never listen. Nor do they observe. You should be able to go into a room and when you come out know everything that you saw there and not only that. If that room gave you any feeling you should know exactly what it was that gave you that feeling. Try that for practice. When you’re in town stand outside the theatre and see how the people differ in the way they get out of taxis or motor cars. There are a thousand ways to practice. And always think of other people.

Go on ....