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.

Success always obsoletes the very behavior that achieved it.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

We're gambling on our vision, and we would rather do that than make "me too" products. Let some other companies do that. For us, it's always the next dream.

And when the prayer is ended, then disperse in the land and seek of Allah's bounty, and remember Allah much, that ye may be successful.

My father had a simple test that helps me measure my own leadership quotient: When you are out of the office, he once asked me, does your staff carry on remarkable well without you?