Always look for these changing technology factors- any market that has a significant change in the underlying raw materials ...or enabling factors, is an environment that is about to change in a very significant way.

In a user lead model, users are bringing in their own technology... and you can build software then, around the user.

The only way to avoid disruption is to constantly do what you would if you were just starting out.

The most customer-centric organizations can answer any question by deciding what's best for the customer, without ever having to ask.

Every single industry is going through a major business model and technology oriented disruption.

If every customer is using your product "correctly", you'll never learn anything interesting about what to do next.

Steve Jobs is the most epic entrepreneur of all time. He served as a guiding light for any emerging businessperson who wanted to learn how things should get done. He'll be looked at as one of the best business leaders of all time, and certainly one of the best tech entrepreneurs.