Sr.Issac Newton once invested and after making big losses said "could calculate the motions of the heavenly bodies, but not the madness of people."
Doctors, lawyers, scientist, engineers, sportsman are some of the brightest most educated and hard-working people around. Yet their portfolio reveals that they tend to be horrible investors.
In investment world EQ(Emotional quotient) matters more then IQ.
Apart from knowledge we need to have financial wisdom and little bit of common sense in avoiding big mistakes.