Beware of advice about successful people and their methods. For starters, no two situations are alike. Your dreams of creating a dry-cleaning empire won't be helped by knowing that Thomas Edison liked to take naps.
The rule is, jam to-morrow and jam yesterday - but never jam today.
There was only one catch and that was Catch-22, which specified that a concern for one's own safety in the face of dangers that were real and immediate was the process of a rational mind ... Orr would be crazy to fly more missions and sane if he didn't, but if he was sane he had to fly them. If he flew them he was crazy and didn't have to; but if he didn't want to he was sane and had to.