" On the contrary, I believe it doesn't make much sense to say that one man is worth more than another. One man can be stronger than another but less wise. Or more educated but not so brave. Or more generous but also more stupid. So his value depends on what you want from him; a man can be very good at his job, and worthless if you set him to do some other job. "

― Primo Levi , If Not Now, When?