I believe successful entrepreneurs need ideas, money, good timing, and a hefty dose of luck, but none of those matter if you don't have grit.

That's why I call the best entrepreneurs infinite learners. The more thorny patches they hit, the more effective they become at hacking their way out.

That's what you've got to do as an entrepreneurial CEO: Get out of the way... Then, when you see someone do something really smart, grab it and elevate it, and be like, 'Let's do that.'

Leaders with grit are relentlessly inventive, using every possible tool to accomplish their goals. They joyfully solve problems in ways that no one ever thought of before.

I think, sometimes, entrepreneurs are written off as wacky visionaries. We can be more than that. We are systems thinkers.

The most scalable nonprofits... start with a plea for help that's ambitious, verging on the unreasonable.