The equation 1
Man = eat + sleep + work + have fun.
A monkey = eat + sleep.
Man = Monkey + Work + Have fun.
Hence: Man - to have fun = monkey + work
A man who does not have fun is like a monkey who works.

The equation 2
Man = eat + sleep + make money.
A monkey = eat + sleep.
Hence: Man = Monkey + making money.
Therefore, man - to make money = monkey.
A man who doesn’t make money is like a monkey.

The equation 3
Woman = eat + sleep + spend money
A monkey = eat + sleep.
Hence: Woman = Monkey + spending money.
Hence: Woman is spending money = monkey.
A woman who doesn’t spend money is like a monkey.

Conclusion
From Equations 2 and 3: The Man Who Won't Make Money
A woman who doesn’t spend money is just a monkey.

Man makes money so women don’t become monkeys.
Conclusion 2: Women spend money to prevent men from becoming monkeys
And what do we get from this?
Man + Woman = earn money + spend money.

Therefore, from Conclusion 1 and Conclusion 2, it can be concluded that:
Man + Woman = Two monkeys that only live together as humans!