[Entrepreneurship] is by no means hunch or gamble. But it also is not precisely science. Rather, it is judgment.

Do what you do best, and outsource the rest.

We live in an age of unprecedented opportunity: If you’ve got ambition and smarts, you can rise to the top of your chosen profession, regardless of where you started out.

Charisma becomes the undoing of leaders. It makes them inflexible, convinced of their own infallibility, unable to change

The great mystery isn't that people do things badly but that they occasionally do a few things well. The only thing that is universal is incompetence. Strength is always specific! Nobody ever commented, for example, that the great violinist Jascha Heifetz probably couldn't play the trumpet very well.

Marketing and innovation make money. Everything else is a cost.

What the customer buys and considers value is never a product. It is always utility, that is, what a product or a service does for the customer.