Equation 1
Human = eat + sleep + work + enjoy
Donkey = eat + sleep
Therefore,
Human = Donkey + work + enjoy
Therefore,
Human - enjoy = Donkey + work
In other words,
Human that don't know enjoy = Donkey that work
Equation 2
Men = eat + sleep + earn money
Donkeys = eat + sleep
Therefore,
Men = Donkeys + earn money
Therefore,
Men - earn money = Donkeys
In other words,
Men that don't earn money = Donkeys
Equation 3
Women = eat + sleep + spend
Donkeys = eat + sleep
Therefore,
Women = Donkeys + spend
Therefore,
Women - spend = Donkeys
In other words,
Women that don't spend = Donkeys
To Conclude:
From Equation 2 and Equation 3
Men that don't earn money = Women that don't spend.
So, Men earn money not to let women become Donkeys! (Postulate 1)
And, Women spend not to let men become Donkeys! (Postulate 2)
So, we have?
Men + Women = Donkeys + earn money + Donkeys + spend money
Therefore from Postulates 1 and 2, we can conclude,
Man + Woman = 2 Donkeys that live happily together!