You're not going to become a great manager overnight. You're not going to become a great public speaker or figure out how to raise money. These are the things you want to start the clock on as early as possible.

You must maximize the probability that someone shows up at front door of your store or website and ends up with a solved problem.

No one is born a CEO, but no one tells you that. The magazine stories make it sound like Mark Zuckerberg woke up one day and wanted to redefine how the world communicates [by creating] a billion-dollar company. He didn't.

Learn early, learn often.

I'd be like, alright, I don't know anything about sales. So I would search for sales on Amazon, get the three top-rated books and just go at it. I did that for marketing, finance, product, engineering. If there was one thing that was really important for me, that was it.

If you start your own thing, you can learn a lot really fast from doing things wrong.

Reading a book about management isnt going to make you a good manager any more than a book about guitar will make you a good guitarist, but it can get you thinking about the most important concepts.