If you want to be useful, you can always start now. It will be a humble prototype of your grand vision, but you’ll be in the game. Start by teaching someone this week. Starting small puts 100% of your energy into solving real problems for real people.

Instead of staying strong and working through when times are really tough, I usually quit this recipe for failure and start a whole new recipe. So if something is too challenging, I tend to chalk it up as not a good fit, and move on to something else.

Repeated psychology tests have proven that telling someone your goal makes it less likely to happen.

If you want to be useful, you can always start now. It will be a humble prototype of your grand vision, but you’ll be in the game. Start by teaching someone this week. Starting small puts 100% of your energy into solving real problems for real people.

Make every decision—even decisions about whether to expand the business, raise money, or promote someone—according to what's best for your customers.

Obvious to you is amazing to others.

For years, I'd say yes to almost everything, trying to be nice and generous. Feeling obliged to be of service to the world. Maybe also a fear of being forgotten if I don't. But I paid the ultimate price in doing that, because for all those years, I got almost no work done! Some famous authors have written about this: that if they said yes to every request, then they'd never have time to write another book again.