WSJ -- Notable & Quotable - From Margaret Thatcher's "Statecraft: Strategies For A Changing World"

The world we all view so much more clearly now, with eyes wiped clean by tears of tragedy, was in truth there all along. It is a world of risk, of conflict and of latent violence. Democracy, progress, tolerance -- these values have not yet taken possession of the earth. And the only sense in which we may have reached the 'end of history' is that we have gained a glimpse of Armageddon

We now know that bin Laden's terrorists had been planning their outrages for years. The propagation of their mad, bad ideology -- decency forbids calling it a religion -- had been taking place before our eyes. We were just too blind to see it. In short, the world had never ceased to be dangerous. But the West had ceased to be vigilant. Surely that is the most important lesson of this tragedy, and we must learn it if our civilization is to survive.