There is madness in every genius. what does madness actually mean here?

Question

Is it excitement , enthusiasm or mental illness in this particular statement

Answer 1

Madness is created when the brain has nothing useful to offer.I have been called insane and useless my whole life despite every prognostication and idea coming true and making others millions. Here I sit poor and drunk without a friend in the world.I tested into the top 2% of aptitude at the age of 5. Nobody wants to reward me for my genius. They just use it wrongly for their own means. That is the source of my madness.