Law 9: Win through your actions, never through argument

TRANSGRESSION OF THE LAW

In 131 B.C., the Roman consul Publius Crassus Dives Mucianus, laying siege to the Greek town of Pergamus, found himself in need of a battering ram to force through the town's walls. He had seen a couple of hefty ship's masts in a shipyard in Athens a few days before, and he ordered that the larger of these be sent to him immediately  The military engineer in Athens who received the order felt certain that the consul really wanted the smaller of the masts. He argued endlessly with the soldiers who delivered the request: The smaller mast, he told them, was much better suited to the task. And indeed it would be easier to transport.

The soldiers warned the engineer that their master was not a man to argue with, but he insisted that the smaller mast would be the only one that would work with a machine that he was constructing to go with it. He drew diagram after diagram, and went so far as to say that he was the expert and they had no clue what they were talking about. The soldiers knew their leader and at last convinced the engineer that it would be better to swallow his expertise and obey.

After they left, though, the engineer thought about it some more. What was the point, he asked himself, in obeying an order that would lead to failure? And so he sent the smaller mast, confident that the consul would see how much more effective it was and reward him justly.

When the smaller mast arrived, Mucianus asked his soldiers for an explanation. They described to him how the engineer had argued endlessly for the smaller mast, but had finally promised to send the larger one. Mucianus went into a rage. He could not concentrate on the siege, or consider the importance of breaching the walls before the town received reinforcements. All he could think aout was the impudent engineer, whom he ordered to be brought to him immediately.

Arriving a few days later, the engineer gladly explained to the consul, one more time, the reasons for the smaller mast. He went on and on, using the same arguments he had made with the soldiers. He said it was wise to listen to experts in these matters, and if the attack was only tried with the battering ram he had sent, the consul would not regret it. Mucianus let him finish, then had him stripped naked before the soldiers and flogged and scourged with rods until he died.

-The 48 Laws of Power