Grit is the stubborn refusal to quit.

The vocational approach at NOCCA (New Orleans Center for the Creative Arts) helps build grit in students. It teaches them how to be single-minded in pursuit of a goal, to sacrifice for the sake of a passion. The teachers demand hard work from their kids because they know, from personal experience, that creative success requires nothing less.

Distance and difference are the secret tonic of creativity. When we get home, home is still the same. But something in our mind has been changed, and that changes everything.

You know more than you know.

The only way to maximize group creativity—to make the whole more than the sum of its parts—is to encourage a candid discussion of mistakes. In part, this is because the acceptance of error reduces cost. When you believe your flaws will be quickly corrected by the group, you're less worried about perfecting your contribution, which leads to a more candid conversation. We can only get it right when we talk about what we got wrong.

And so we keep on thinking, because the next thought might be the answer.

How do we regulate our emotions? The answer is surprisingly simple: by thinking about them. The prefrontal cortex allows each of us to contemplate his or her own mind, a talent psychologists call metacognition. We know when we are angry; every emotional state comes with self-awareness attached, so that an individual can try to figure out why he's feeling what he's feeling. If the particular feeling makes no sense—if the amygdala is simply responding to a loss frame, for example—then it can be discounted. The prefrontal cortex can deliberately choose to ignore the emotional brain.