A doctor says to a wealthy patient who has a brain disease:
“You can only survive if you replace your brain. You have three options.
First, the brain of a physicist costs $48,000.
Second, the brain of a university professor costs $500,000.
Third, the brain of a minister costs $2.4 million.”
The patient asks:
“Why is the minister’s brain so expensive?”
The doctor replies:
“Because it’s almost brand new.”
