Don't quit. Never give up trying to build the world you can see, even if others can't see it. Listen to your drum and your drum only. It's the one that makes the sweetest sound.

We crave explanations for most everything, but innovation and progress happen when we allow ourselves to embrace uncertainty.

Leaders don't convince people to follow them. Leaders walk forward alone and those who want to go down their path decide to follow.

Multi-millionaires who pay half or less than half of the percentage of tax the rest of us pay justify their actions by saying they pay what the law requires. Though true, the fact is they found ways within the law to beat the purpose of the law - which, in the case of taxes, is that we all pay our fair share.

I'm building on purpose. I'm building that tipping point. I'm building that law of diffusion of innovation.

The responsibility of leadership is not to come up with all the ideas but to create an environment in which great ideas can thrive.

The most effective leaders are actually better at guarding against danger when they acknowledge it that it exists. Cowards, in contrast, cling to the hope that failure will never happen and may be sloppy in the face of danger - not because they don't acknowledge that it exists, but because they are just too afraid of it to look it in the eye.