Great video by Steve Jobs on Focus.

Focus is not about what you say yes to, it’s about what you say no to. Read more about our thoughts in our book Startup Focus. 

People think focus means saying yes to the thing you’ve got to focus on. But that’s not what it means at all. It means saying no to the hundred other good ideas that there are. You have to pick carefully. I’m actually as proud of the things we haven’t done as the things I have done. Innovation is saying “no” to 1,000 things.