Vertigo, it was thought at the time, could only be caused by a disease of the cerebellum. He observed this kind of patient for years and saw absolutely no symptoms of brain disease.
He would still see it as his duty to shut up and get on with it, not cause any trouble. In our own time we've made a hero of the rebel, and it's more heroic to speak up.
Racism springs from the lie that certain human beings are less than fully human. It's a self-centered falsehood that corrupts our minds into believing we are right to treat others as we would not want to be treated.

