I built a system simple enough to sustain itself.

What makes eBay successful.. the real value and the real power at eBay is the community. It's the buyers and sellers coming together and forming a marketplace.

It is not really work if you are having fun.

Build a platform - prepare for the unexpected...you' ll know you're successful when the platform you've built serves you in unexpected ways.

You should pursue your passion. If you're passionate about something and you work hard, then I think you will be successful.

Be an enzyme - a catalyst for change. As a slogan, I don't know if that's ever going to be right up there with Ich Bin Ein Berliner, or “I Have A Dream,” but there's a lot of truth to it.

I've got a passion for solving a problem that I think I can solve in a new way. And that maybe it helps that nobody has done it before as well.

We have technology, finally, that for the first time in human history allows people to really maintain rich connections with much larger numbers of people.

I was just pursuing what I enjoyed doing. I mean, I was pursuing my passion.

Long-term sustainable change happens if people discover their own power.

When you don't know what to expect, prepare for the unexpected.

Success or failure in your work and relationships is dependent on how you manage your feelings.

America I used to be a communist when I was a kid and I'm not sorry.

Industrial capitalism brought representative democracy, but with a weak public mandate and inert citizenry. The digital age offers a new democracy based on public deliberation and active citizenship.

I don't know that I'm going to get along with Vladimir Putin. I hope I do. But there's a good chance I won't.

By the time I left school, I had a lot of tenacity.

After two world wars, the collapse of fascism, nazism, communism and colonialism and the end of the cold war, humanity has entered a new phase of its history.

He said, 'Yeah, but will I get chicks? In truckloads?

Return to the fundamentals of politics - sell our story door to door.

Embody the three harmonies: within; with others; and with nature.

Dogs may have kept us company on the hunt, but it was the cats who insisted we invent houses and discover fire.