Many people say that wealth is a reward for cognition.
But I feel that a person's substance and his/her wealth seem to have no necessary relationship.
I know some extremely wise people who live an extremely simple and impoverished life. They really don't seem to care much about money.
I have also seen many people who earned millions and tens of millions by themselves,
but I have never seen anyone who earned over one hundred million by themselves, not a single one.
Is there some secret in between?