There are two kinds of people -- those who think there are two kinds of people, and those who don't.

To put it another way, there is a peculiar psychological need for some people to see the world in black and white. Politically, in our divided nation, there are liberals and conservatives.

In that context, I've been thinking some more about "a national agenda for public libraries."

I believe there are two fundamental arguments for the public library: it is a public good, and it is a sound return on the investment.