Being well cared for in nonemotional areas can create confusion in people who grow up feeling emotionally lonely. They have overwhelming physical evidence that their parents loved and sacrificed for them, but they feel a painful lack of emotional security and closeness with their parents.

The measure of usefulness of an early customer conversation is whether it gives us concrete facts about our customers' lives and world views. These facts, in turn, allow us to improve our business.

I believe the concept of the engine of growth can put the idea of product/market fit on a more rigorous footing.

The best leaders are lifelong learners; they take measures to create organizations that foster and inspire learning throughout. The most effective leaders are those who realize it’s what you learn after you know it all that counts most.

I only do what is easy. I only write when I immediately know how to do it. If I falter for a moment, I put the matter aside and do something else.

For those in their twenties, a very aggressive investment portfolio is recommended. At this age, there is lots of time to ride out the peaks and valleys of investment cycles, and you have a lifetime of earnings from employment ahead of you.

Art is something we get to do for other people.

To become a solid person, I must give up whatever idols I am depending on to give me life.

Our society needs the creativity and vision of entrepreneurs more than ever. In fact, it is precisely because these are such precious resources that we cannot afford to waste them.

And until we gain the capacity to step out of our own autobiography—to set aside our own glasses and really see the world through the eyes of others—we will never be able to build deep, authentic relationships and have the capacity to influence in positive ways.