Books have been my classroom and my confidant. Books have widened my horizons. Books have comforted me in my hardest times. Books have changed my life.

We've all lost something along the way.

Testosterone is the hormone of collaboration and competition that, whenever we compete on a team, we collaborate with our teammates. And most of us in our daily life, to the extent that we have to compete with the rat race in the world out there, we're collaborating with other people at the same time. The two are hand in hand.

I used to want to change the world. Now I'm open to letting it change me.

I can push myself and you can push yourself, but competing, we push ourselves a little farther and we bring out our best even if one of us wins and one of us loses. The virtue of competition is that we both get better, not that one does. And that means we have great respect for the opponents, whether we win or whether we lose.

I learned that it was in hard times that people usually changed the course of their life; in good times, they frequently only talked about change. Hard times forced them to overcome the doubts that normally gave them pause.It surprised me how often we hold ourselves back until we have no choice.

Failure is hard, but success is far more dangerous. If you're successful at the wrong thing, the mix of praise and money and opportunity can lock you in forever.