THE MOSLO THEORY
Moslo was a man that devoted his entire to life to finding what makes people happy when working. He settled with four different needs of each person.
Your basic needs would be food, drink and shelter etc.
These could be jobs, money and warmth etc.
This is where you have friends, be social and are in love.
This is achievement, promotions etc.
This is where you are complete, for example david beckham.