You know you're ready to write a book when you have a feeling that you should do it, no matter what anybody says. It's like falling in love or starting a company. When you're still wondering if you should get married or you're still wondering whether you should start a company that might be not the right person or the right idea. And writing is the same way. When you've locked on to the topic, you'll just write it.

A magnificent cause can overcome a prickly personality, but your ability to enchant people increases if they like you, so you should aspire to both. You’ll know that you’re likeable when you can communicate freely, casually, and comfortably with people.

If you use social media right, you will piss people off. It's actually recommended!

Patience is the art of concealing your impatience.

Revolutionary leaders have to care more about what they think of themselves than what the world thinks of them.

Most of my life is over. I am going to enjoy my family and friends before any of us depart this earth. I'll never start another company. I'll never work long hours again. At this point in my life, I only answer to God, my wife, and my kids. Everything else is secondary - especially the expectations of strangers.

This is the beauty of social media: it helps you find people and then you can contact them fast and inexpensively.