Years ago, I came up with this phrase to describe why libraries matter: they are institutions dedicated to the recognition and support of the fundamental dignity of human inquiry. Curiosity is responsible for all the real gains in the quality of human life. What causes disease, and how can we prevent it? How can we build comprehensive and sustainable systems to deliver clean water and energy, to move goods and services to markets, or to educate the young? Human beings ask questions, and in the fearless pursuit of answers, they can find their way to the things that make human life enduring and worthwhile. That end - a life in which people are free to explore the universe around them, to stand unafraid, to build rather than blunder and destroy their way through their days, to live with dignity and purpose - requires at least three things. First, we must have the freedom to express what we know or think we know. This is what we mean by “free speech” -- the right to think, say, and w...