People with clear, written goals, accomplish far more in a shorter period of time than people without them could ever imagine.

The difference between the top performers and the average or mediocre performers is not a great, massive difference. It is just a tiny difference because the top performers do things just a tiny bit.

The more you take on, the more efficient you become. You only learn how much you can actually do by trying to do too much.

An average person who develops the habit of setting clear priorities and getting important tasks completed quickly will run circles around a genius who talks a lot and makes wonderful plans but gets very little done.

Your life is a reflection of your thoughts. If you change your thinking, you change your life.

Your determination to become a more optimistic person in every part of your life will do more to ensure your success and happiness than any other single quality you can develop.

All the businesses from the beginning of history have struggled with product development (assuming there is a market, doing the market testing and so on). But now they start with customer development. Get the customer who says, "Yes. I want that. I need it. I wanna use it. I'll pay for it." And then you go back and work with your engineers. It is changing the world!