Technology has come a long way since PayPal.

The single most important top-level trend is the shift to mobile.

Ignore your mistakes. The number one thing to worry about is -Am I doing what I'm good at?

You can have successful teams where people hate but deeply respect each other; the opposite (love but not respect among team members) is a recipe for disaster.

Having a highly homogeneous background, education, values, preferences, etc, in the very early team is better than not - cuts down on time-wasting arguments.

The world is now awash in data and we can see consumers in a lot clearer ways.

We're all put on Earth for a limited amount of time. Am I using in a way that is great, or good enough, or wasteful?

The notion that diversity in an early team is important or good is completely wrong. You should try to make the early team as non-diverse as possible.

Being an entrepreneur is not about being in love with an idea, it's about being in love with running a company.

You can't get married to any one particular plan. That is the biggest lesson I learned at PayPal.

Facebook is so ubiquitous now that it's like another manifestation of the web itself.

How I look to you is the reflection of how you look at me.

The one best place to bury a good dog is in the heart of his master.

What can I do to become more like my Ideal Image?

Great men, like comets, are eccentric in their courses, and formed to do extensive good by modes unintelligible to vulgar minds.

I became very critical of zoos and circuses and keeping animals in captivity. I wish it was against the law.

Nothing has happened in education until it has happened to a student.

I've never met Hans Rosling, but I just knew him through his many YouTube videos, and they were absolute dynamite.

I've always liked working with friends or, you know, people I have outside relationships with.

Will. Honeycomb calls these over-offended ladies the outrageously virtuous.

You can't really put a time limit on how long someone will grieve.