Rather than spend my life on data entry and typing, I also take photos on my iPhone of business cards, wine labels, menus, or anything I want to have searchable on-the-run.

The book is first and foremost something I made for myself.

Short, sweet, and to the point. Clear writing, and therefore clear commands, comes from clear thinking. Think simple.

Excitement is the more practical synonym for happiness, and it is precisely what you should strive to chase. It is the cure-all. When people suggest you follow your "passion" or your "bliss," I propose that they are, in fact, referring to the same singular concept: excitement. This brings us full circle. The question you should be asking isn't, "What do I want?" or "What are my goals?" but "What would excite me?"

I'm not averse to making a lot of money. But where does that end? I hang out with people with hundreds of millions of dollars. Is that the standard by which I should measure myself? Where does that take you if you're in my business? I think it takes you to pretty dark, corrupt places.

Being able to quit things that don't work is integral to being a winner

Focus on impact, not approval. If you believe you can change the world, which I hope you do, do what you believe is right and expect resistance and expect attackers. Keep calm and carry on!