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
 
**************************************************  ****
To Conclude:
 
Men earn money not to let women become Donkeys!
 
Women spend not to let men become Donkeys!
 
Man + Woman = 2 Donkeys!  
36_1_19[1].