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.

If it's not a hit, switch.

Obvious to you is amazing to others.

You can't please everyone, so proudly exclude people.

Don't be on your deathbed someday, having squandered your one chance at life, full of regret because you pursued little distractions instead of big dreams.

The most brilliant idea, with no execution, is worth $20. The most brilliant idea takes great execution to be worth $20,000,000.

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.