At its core, I don't view Facebook as a social network. I think it could become the driver's license of the Internet. And beyond that, it can become the pipes and the plumbing upon what most of the Internet is built. I think it's very well positioned.

I still feel there are much smarter self-promoters out there than me. I am very methodical about my messaging, and I know how to gain attention very quickly.

I started using Twitter about year after its very early adoption and ended up investing in it around that same time. I'm involved with the Tech scene and companies ranging from Facebook, Stumbleupon and Twitter.

Excitement is the more practical synonym for happiness, and it is precisely what you should strive to chase. It is the cure-all. When people suggest you follow your "passion" or your "bliss," I propose that they are, in fact, referring to the same singular concept: excitement. This brings us full circle. The question you should be asking isn't, "What do I want?" or "What are my goals?" but "What would excite me?"

People will choose unhappiness over uncertainty.

Focus on impact, not approval. If you believe you can change the world, which I hope you do, do what you believe is right and expect resistance and expect attackers. Keep calm and carry on!

Focus on being productive instead of busy.