Our ability to adapt came from our East African birthplace, a meteorologically unstable place. If you couldn't adapt, you'd be dead. But once you've found a solution, there is no need to continue the adaptive behavioral parrying, which is bioenergetically very expensive to maintain. We are built to find answers, then hang on to them as long as we can.

The brain remembers the emotional component of an experience better than any other aspect.

You don't have a work brain and a home brain. You have a single brain, one you carry with you wherever you go. Whatever affects you in one place is fully capable of affecting you at the other.

What's obvious to you is obvious to you.

There is a neuron in your brain that will respond only to pictures of Jennifer Aniston - provided you have had prior visual exposure to the actress. That neuron does not respond to pictures of Bill Clinton or Halle Berry. Only Jennifer. I used the story to explain the almost ridiculous plasticity of the organ. There is no such thing as Jennifer Aniston in our evolutionary history - she was born in 1969, for heaven's sake - but we are flexible enough to devote an entire cell to her if we have previously encountered her in some fashion.

Based on research into the Picture Superiority Effect, when we read text alone, we are likely to remember only 10 percent of the information 3 days later. If that information is presented to us as text combined with a relevant image, we are likely to remember 65 percent of the information 3 days later.

Americans have been good at improvising for a long time, but in the last few decades, we have gotten very sloppy about the rote memorization of facts. That's a discipline issue. You need the rote skill in order to have something to improvise off of, otherwise you are simply playing air guitar.