I believe we need a more opportunistic and democratic approach to lunar exploration, now that we're shifting from U.S. government-sponsored space exploration to private expeditions.

Neuroplasticity research showed that the brain changes its very structure with each different activity it performs, perfecting its circuits so it is better suited to the task at hand.

My parents didn't believe in luck. They believed in hard work and in preparing me to take advantage of opportunity. Like many parents, they taught me to be generous but never to depend on the generosity of others.

It's a simple fact: no individual can be good at everything. Everyone needs people around them who have complimentary sets of skills.

Trust your gut instinct over spreadsheets. There are too many variables in the real world that you simply can't put into a spreadsheet. Spreadsheets spit out results from your inexact assumptions and give you a false sense of security. In most cases, your heart and gut are still your best guide.

Apple Computer would not have reached its current peak of success if it had feared to roll the dice and launch products that didn't always hit the mark. In the mid-1990s, the company was considered washed up. Steve Jobs had departed, and a string of lackluster product launches unrelated to the company's core business had failed to catch fire.

Being a father has been, without a doubt, my greatest source of achievement, pride and inspiration. Fatherhood has taught me about unconditional love, reinforced the importance of giving back and taught me how to be a better person.