“

Vimes stared at the door until his eyebrows ached. And then, just as random patterns in cloud suddenly, without changing in any way, become a horse’s head or a sailing ship, he saw what he’d been looking at all along. A sense of terrifying admiration overcame him. He wondered what it was like in the Patrician’s mind. All cold and shiny, he thought, all blued steel and icicles and little wheels clicking along like a huge clock. The kind of mind that would carefully consider its own downfall and turn it to advantage.

It was a perfectly normal dungeon door, but it all depended on your sense of perspective.

In this dungeon the Patrician could hold off the world.

All that was on the outside was the lock.

All the bolts and bars were on the inside.

Guards! Guards! de Terry Pratchett. Para mim um dos melhores parágrafos da literatura.