You know, I'm not a huge fan of the concept of 'passion' when it comes to careers. Instead of trying to answer the daunting question of 'What's your passion?' it's better simply to watch what you do when you've got time of your own and nobody's looking.

A lot of white-collar work requires less of the routine, rule-based, what we might call algorithmic set of capabilities, and more of the harder-to-outsource, harder-to-automate, non-routine, creative, juristic - as the scholars call it - abilities.

Questions are often more effective than statements in moving others. Or to put it more appropriately, since the research shows that when the facts are on your side, questions are more persuasive than statements, don't you think you should be pitching more with questions?

One source of frustration in the workplace is the frequent mismatch between what people must do and what people can do. When what they must do exceeds their capabilities, the result is anxiety. When what they must do falls short of their capabilities, the result is boredom. But when the match is just right, the results can be glorious. This is the essence of flow.

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 monkeys solved the puzzle simply because they found it gratifying to solve puzzles. They enjoyed it. The joy of the task was its own reward.

"Mad" magazine is like one of my few formative experiences, absolutely. "Mad" magazine teaches a whole generation of people to be irreverent toward power.