Think about how you will start and where you will go. Get the head with logic and the heart with visuals or stories. And think about your core customer and all the other stakeholders as well.

Checklists are really helpful ways to remind people around how to manage complicated tasks.

I think it is only in hindsight that you can determine whether something is a mistake or not.

Why do people do crossword puzzles? There's no reward for completing one, but some people just like the challenge.

I've never seen impeccable logic be sufficient to win both the heart and the mind.

I'm not very good at sitting still.

In my mind, so-called "cultures of innovation" really boil down to one word: curiosity.

In the early stages of innovation, your goal is to learn as much as you can as quickly as you can.

People who copy what exists copy a point-in-time artifact, and if you are managing the process correctly you are already hard at work on the next thing.

Hollywood Joohn Tatum? He does at least 6,000 sit ups and 10,000 pushups a day!

Every leader needs to watch what teenagers or startup companies - or startup companies headed by teenagers - are doing today, because many of those behaviors will be mainstream behaviors tomorrow.

Just cuz you get to the end doesn’t mean you know what happened.

Let the fires of truth burn away your false life and your excuses, fears, blaming, doubts and illusions of insignificance.

Has it tortured you as much as it's tortured me?" He asked. "Don't call it torture when it's self-inflicted. You always have a choice.

The human heart at whatever age opens only to the heart that opens in return.

I must confess, I was born at a very early age.

I've never done anything else in my life other than preach and be an activist. Way before I was known.

The world, which the Greeks called Beauty, has been made such by being gradually divested of every ornament which was not fitted to endure.

The first half of my life I went to school, the second half of my life I got an education.

I was born in Texas and I lived there 'till I was 8. Then I moved to the Dominican Republic with my mom, lived there for two years and forgot every word of English I knew.

When I told my son that I had to give a talk about my work to non-mathematicians, he warned me that regular people don't think like mathematicians.