THIS IS A SIMPLE REASONING AT ITS BEST!!
A mechanic was removing a cylinder-head from the motor of a Harley-Davidson motorcycle when he spotted a well-known heart surgeon in his shop. The surgeon was there waiting for the service manager to have a look at his bike. The mechanic shouted across the garage, “Hey Doc, want to take a look at this?” The cardiac surgeon, a bit surprised, walked over to where the mechanic was working on the motorcycle. The mechanic straightened up, wiped his hands on a rag, and asked, “So Doc, look at this engine. I open its heart, take the valves out, repair any damage, and then put them back in. When I finish, it works just like new. So how come I make $40,000 a year and you get more than $1,000,000 a year? You and I do basically the same thing?” The heart surgeon paused, smiled, and leaned over to the mechanic, “Try doing it with the engine running.”