The single most important thing is to make people happy. If you are making people happy, as a side effect, they will be happy to open up their wallets and pay you.

It was the first follower that transformed the lone nut into a leader.

There is no movement without the first follower. See, we are told that we all need to be leaders but that would be ineffective. The best way to make a movement, if you really care, is to courageously follow and show others how to follow.

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

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

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

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.