The best opportunities are often ones where you're being contrarian. That doesn't mean being contrarian for contrarian's sake, but it means you're thoughtful about the risks of following the crowd.

I think that it will be the mobile technologies, both from the enterprise and the consumer side, where super unicorns will come from. I still believe that social networking in combination with mobile will create opportunities for super unicorns.

Being mean just for being mean's sake isn't funny.

The best early-stage venture capital investments appear obvious in retrospect; however, very few of them are actually obvious when you make them.

For us, whether the market is skewed from a bubble perspective or not really is mitigated by staying focused on what we do best.

We reviewed our process at Greylock and discovered that the best investments are non-obvious enough that they result in a mixed vote by our partnership.