The experience is not so easy.

The machine of a ship is broken.
The authorities did not understand the problem,
No one has succeeded in repairing
After
They have brought a master with 40 years of experience in his business.
The master has thoroughly examined the machine,
Then he pulled out a handbag and a hammer,
He hit the machine with a hammer and then the machine started to work.
Officials and ship captain glad
Everyone turned to work
They asked the master
How much do we owe?
The Master answered.
I will send you an invoice for the week.

He sent a bill to the company after 1 week.
Machine Repair Fee: $ 10,000
The company owner is very surprised,
What!
He did not do anything, why does he want so much money from us?
Let's examine the detailed bill of payment for your work. Said.

The master indicated by typing the bill again.
Hammer: $ 2
Know where to hit: $ 9,998.
Total: $ 10,000
This is the cost of knowing your business well and doing your job well.