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!

You can't help the poor by becoming one of them.

Don't be reluctant to give of yourself generously, it's the mark of caring and compassion and personal greatness.

Develop an attitude of gratitude, and give thanks for everything that happens to you, knowing that every step forward is a step toward achieving something bigger and better than your current situation.

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.

Remind yourself that problems come not to obstruct, but to instruct.

Why haven't you achieved your goals yet? What are your favorite excuses, and how do they hold you back?