Discourse has ended in America. It's all just shouting and ranting and demonization. Do you know how the rest of the world laughs at you guys? Have you got any idea? They're just rocking with laughter night and day.

You shouldn't go around the world behaving ruthlessly when you don't have to. Sometimes you do have to. There is only so much pie to go around. If you're going to take more than your fair share of pie, as socialists would look at it, then someone else is not getting his. That means you've got to take it away from them.

I have an over-attachment to precision, which is why I've sold more magazines than any man alive.

Human beings are definitely changing the planet, but how much impact they are having on climate, I don't know and I don't care.

Overhead will eat you alive if not constantly viewed as a parasite to be exterminated. Never mind the bleating of those you employ. Hold out until mutiny is imminent before employing even a single additional member of staff. More start-ups are wrecked by overstaffing than by any other cause, bar failure to monitor cash flow.

Computers are wasteful of paper and time. Once, we'd get documents with a few errors. Now, people make hundreds of copies until each sheet is flawless and memos are duplicated endlessly. Managers get swamped with emails.

As with the onset of sudden celebrity, for the newly rich, the world often becomes a darker, narrower, less generous place; a paradox that elicits scant sympathy, but is nonetheless true.