‘And all this … it makes your machines better?’
The Keeper shrugs. ‘It makes us better,’ he says. ‘Or at least, it means we do not become casual about effort and art. We appreciate the weakness of the world and come to understand the glories and stresses of our selves. But yes. The product is better, by perhaps a single percentage point, than it would be if it were made by machines to perfect tolerances. It doesn’t matter until you stress it. Stress this train, and it will hold. It will hold beyond what the specifications say; beyond what any of us believes. It will hold beyond reason, beyond expectation, beyond hope. Derail it, drive it across sand, twist and heat it. It will do what it can for you. It will hold as if it was alive, and filled with love. And when it fails, it will fail hugely, heroically, and take your enemies with it. Because it has been made that way.’"