But humans had to learn to ignore appearance. No two beings who shared common thinking processes and common goals should be truly alien to each other. - Charles Sheffield

In the old words of wisdom, you can fool some of the people all of the time and all of the people some of the time, and that’s usually enough to get by.

Human culture is built around four basic elements: sexual relationships, territorial rights, individual intellectual dominance, and desire for group acceptance. The H’Sirin model using just these four traits as independent variables enables accurate prediction of human behavior patterns. On the basis of this, human culture is judged to be of Level Two, with few prospects for advancement to a higher level. —From the Universal Species Catalog (Subclass: Sapients)

It’s no surprise that there are people like Anna Griss in the world. There always have been. Go back fifty thousand years, to a time when most of us were just grubbing along, looking for a decent bush of ripe berries or a fresher lump of meat. A few, like McAndrew, were busy inventing language or numbers, or painting the walls of the cave. And some, just a handful but too many in every generation, were seeking an edge over the rest of us: Water access, or mating rules, or restricted entry to heaven. No matter how few they were, Anna Griss would have been one of them.