Human = eat + sleep + work + enjoy
Donkey = eat + sleep
Therefore,
Human = Donkey + work + enjoy
If, Human - enjoy = Donkey + work
In other words,
Human that don't know enjoy = Donkey that work
******************************
Men = eat + sleep + earn money
Donkeys = eat + sleep
Therefore, Men = Donkeys + earn money
If Men - earn money = Donkeys
In other words,
Men that don't earn money = Donkeys
******************************
Women = eat + sleep + spend
Donkeys = eat + sleep
Therefore, Women = Donkeys + spend
If, Women - spend = Donkeys
In other words,
Women that don't spend = Donkeys
******************************
Conclusion:
Men earn money not to let women become Donkeys!
Women spend not to let men become Donkeys!
Man + Woman = 2 Donkeys!
And the Donkeys lived happily ever after!