How your social network - the people that you know, or in your community - understand or value a work can be... a tremendously relevant indicator of how important or meaningful it's going to be to you.

In the university library, we know when a book has been used in a class or put on reserve... or while it was out, did somebody call it back in. It turns out to be a pretty good indicator of how relevant the work is at that time.

We've known for a long time, and I think culturally we've accepted, that diversity is an important thing in the work of knowledge.

Because books are written by individuals, it has often made knowledge seem like the product of individuals, even though everybody has always understood that individuals are working within the social network.

With the new medium of knowledge - the Internet - knowledge not only takes on properties of that medium but also lives at the level of the network.

It's very important for people to know themselves and understand what their value system is, because if you don't know what your value system is, then you don't know what risks are worth taking and which ones are worth avoiding.