One of my favorite quotes comes from the Dalai Lama is: "When you talk, you are only repeating what you already know. But if you listen, you may learn something new."

Billionaire Marc Benioff does it every day. So does Russell Simmons, Jeff Weiner, and even Arianna Huffington. It's meditation, and these successful people (and many other CEOs just like them) swear that spending a few quite moments with their mind makes them better thinkers and leaders.

Everyone wants happiness, but few know how to get it. But achieving happiness does not have to be such a mystery. You have the power to increase your level of happiness even if you are naturally not an upbeat person or are easily affected by the daily ups and downs of business.

To boost your brain, you also need to boost your body.

As I explained in my previous article, for optimal brain power you need to increase your brain's neuroplasticity--your brain's ability to grow and expand. One way science has shown you can do this is with regular exercise.