"Truck Driver Retirement" joke

A truck driver was interveiwed after 40 years of truck driving
and his retirement party. They asked him one question that
really made him think.
"So, sir, after 40 years of being a truck driver, what is one
thing you have learned?"
The man took a deep breath and let it out and he sighed.
Finally, he replied.
"You learn a lot on the road. But what really struck me is one
thing. When you are driving on a routine 10 hour drive, you
realize, down the road somewhere is a truck, the same as yours,
the same size weight, and carrying the same load of
supplies---going the other way."