Do your own market research; ask your last ten customers exactly why they bought from you.

Self-acceptance begins in infancy, with the influence of your parents and siblings and other important people. Your own level of self-acceptance is determined largely by how well you feel you are accepted by the important people in your life. Your attitude toward yourself is determined largely by the attitudes that you think other people have toward you. When you believe that other people think highly of you, your level of self-acceptance and self-esteem goes straight up. The best way to build a healthy personality involves understanding yourself and your feelings.

The world seems to belong to those who reach out and grab it with both hands. It belongs to those who do something rather than just wish and hope and plan and pray, and intend to do something someday, when everything is just right.

Define your goals in terms of the activities necessary to achieve them, and concentrate on those activities.

We will always tend to fulfill our own expectation of ourselves.

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!

There is no real limit to how much better a person who really commits to getting better can get. Every manager has the potential to become an excellent manager for the rest of his or her career.