KEYWORDS: wisdom, knowledge, tools
A railroad company was having some serious difficulties with a specific diesel engine. No matter how the workers tried, they could not get the engine started. At last, they called an expert on diesel locomotives. Hearrived and examined the engine. He then produced a small hammer. He lightly tapped the engine with the hammer. The engine sprang into life. He later sent the company a bill for $1000. The company asked the expert for an itemized bill. He sent the following: For tapping the engine with a hammer, $10; For knowing where to tap the engine, $990.