Let’s never forget that whatever brilliant ideas you have or hear, that the opposite may also be true.

If you really care about starting a movement, have the courage to follow and show others how to follow. And when you find a lone nut doing something great, have the guts to be the first one to stand up and join in.

Every time you're making a choice, one choice is the safe/comfortable choice - and one choice is the risky/uncomfortable choice. the risky/uncomfortable choice is the one that will teach you the most and make you grow the most, so that's the one you should choose.

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

Making a company is a great way to improve the world while improving yourself.

Success comes from persistently improving and inventing, not from persistently promoting what’s not working.

The most important lesson is probably to spend less than you earn.