What is it that nobody likes, but directs even the greatest of King's actions. It is much like a blade, and made to hurt, but it has never killed anyone, even though wounding thousands. It thieves no one but becomes rich. It spans the whole world and makes life fit. The greatest of kingdoms it has built, and founded the oldest of them all, but never has it started a war and those that believe in it will be fit forevermore.
The best guess I can come up with is 'writing'. Doesn't fit everything, though.