I may say that the only differences I expect to see revealed between the behavior of the rat and man (aside from enormous differences of complexity) lie in the field of verbal behavior.
The only geniuses produced by the chaos of society are those who do something about it. Chaos breeds geniuses. It offers a man something to be a genius about.
A person’s genetic endowment, a product of the evolution of the species, is said to explain part of the workings of his mind and his personal history the rest.
