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. - William Zinsser

I had been sitting in Joan Countryman’s living room for two hours talking about mathematics. My pulse was steady, the hand that held my note-taking pencil didn’t shake and wasn’t even clammy. Where was that old math anxiety? I hadn’t been at any loss for questions; they came to me naturally. Like the process of writing, the process of asking questions had been a form of learning, raising further questions and telling me what I wanted to know next. I was genuinely curious. It never occurred to me that this was a subject I wasn’t supposed to be any good at. What did occur to me was that mathematics was not some arcane system of numbers; it was a language, a way of putting thoughts together. I might never master the language — my checkbook might still go unbalanced — but at least I had begun to glimpse what the language was trying to say and how it could help people to understand the world around them.

Who am I editing for?” One of my principles is that there is no typical anybody; every reader is different. I edit for myself and I write for myself. I assume that if I consider something interesting or funny, a certain number of other people will too. If they don’t, they have two inalienable rights — they can fire the editor and they can stop reading the writer. Meanwhile I draw on two sources of energy that I commend to anyone trying to survive in this vulnerable craft: confidence and ego. If you don’t have confidence in what you’re doing you might as well not do it.

Soon after you confront the matter of preserving your identity, another question will occur to you: “Who am I writing for?” It’s a fundamental question, and it has a fundamental answer: You are writing for yourself. Don’t try to visualize the great mass audience. There is no such audience — every reader is a different person. Don’t try to guess what sort of thing editors want to publish or what you think the country is in a mood to read. Editors and readers don’t know what they want to read until they read it. Besides, they’re always looking for something new. Don’t worry about whether the reader will “get it” if you indulge a sudden impulse for humor. If it amuses you in the act of writing, put it in. (It can always be taken out, but only you can put it in.) You are writing primarily to please yourself, and if you go about it with enjoyment you will also entertain the readers who are worth writing for. If you lose the dullards back in the dust, you don’t want them anyway.