In business or out of it, there's nothing unusual or shameful about making a mistake - once. But… to stumble twice against the same stone is a proverbial disgrace.

Good leaders organize and align people around what the team needs to do. Great leaders motivate and inspire people with why they're doing it. That's purpose. And that's the key to achieving something truly transformational.

You don't need to have a 100 person company to develop that idea.

I suppose my formula might be: dream, diversify and never miss an angle.

Excellence matters, and technology advances so fast that the potential for improvement is tremendous. So, since becoming CEO again, I've pushed hard to increase our velocity, improve our execution, and focus on the big bets that will make a difference in the world.

The man who does not work for the love of work, but only for money, is likely to neither make money nor find much fun in life.