Anytime you're tempted to upsell someone else, stop what you're doing and upserve instead.

In many professions, what used to matter most were abilities associated with the left side of the brain: linear, sequential, spreadsheet kind of faculties. Those still matter, but they're not enough.

The future belongs to a different kind of person with a different kind of mind: artists, inventors, storytellers-creative and holistic 'right-brain' thinkers whose abilities mark the fault line between who gets ahead and who doesn't.

I think people get satisfaction from living for a cause that's greater than themselves. They want to leave an imprint. By writing books, I'm trying to do that in a modest way.

Do what you can't and experience the beauty of the mistakes you make.

Now it's easy for someone to set up a storefront and reach the entire world in very modest ways. So these technologies that we thought would dis-intermediate traditional sellers gave more people the tools to be sellers. It also changed the balance of power between sellers and buyers.

The ability to take another perspective has become one of the keys to both sales and non-sales selling. And the social science research on perspective-taking yields some important lessons for all of us.