The best entrepreneurs I've ever met are all good communicators. It's perhaps one of the very few unifying factors.

Happiness has a very short half-life.

Get good at being a troublemaker and saying sorry when you really screw up

Doing the unrealistic is easier than doing the realistic.

I gauge success in years, not weeks. The weekend box-office approach to book launches is short sighted and encourages crappy books.

The start of the day is often the best time to get things done. This is somewhat related to willpower.

It's lonely at the top. Ninety-nine percent of people in the world are convinced they are incapable of achieving great things, so they aim for the mediocre. The level of competition is thus fiercest for "realistic" goals, paradoxically making them the most time-consuming and energy consuming. It is easier to raise $10,000,000 than it is $1,000,000. It is easier to pick up the one perfect 10 in the bar than the five 8s.