This is the best I have read in a LONG time

 

Equation 1 

Human = eat + sleep + work + enjoy
Donkey = eat + sleep 

Therefore:
Human = Donkey + Work + enjoy 

Therefore:
Human-enjoy = Donkey + Work 

In other words,
A Human that doesn't know how to enjoy = Donkey that works. 

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Equation 2 

Man = eat + sleep + earn money
Donkey = eat + sleep 

Therefore:
Man = Donkey + earn money 

Therefore:
Man-earn money = Donkey 

In other words,
Man who doesn't earn money = Donkey 

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Equation 3 

Woman= eat + sleep + spend
Donkey = eat + sleep 

Therefore:
Woman = Donkey + spend
Woman - spend = Donkey 

In other words,
Woman who doesn't spend = Donkey 

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To Conclude:
From Equation 2 and Equation 3 

Man who doesn't earn money = Woman who doesn't spend 

So Man earns money not to let woman become a donkey!
And a woman spends not to let the man become a donkey! 

So, We have:
Man + Woman = Donkey + earn money + Donkey + Spend money 

Therefore from postulates 1 and 2, we can conclude 

Man + Woman = 2 Donkeys that live happily together!