"I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better."

"You can be evil and still make money."

"The most important thing is to have a long-term vision."

"Most companies decay slowly over time. They do a little worse every year."

"If you're changing the world, you're working on important things. You're excited to get up in the morning."