
The first hypothesis is that in Homo sapiens the instincts have lost much of their cogency: they no longer command us like puppets. With the same biology, the choices an individual makes are dictated much more by personal history, by experiences and traumas, by family and social influences, or simply by the uniqueness of the individual. Our evolutionary heritage has weakened: it makes us capable of one behavior and its opposite, but then which of the two we choose depends on a cultural judgment of what we think is good or bad.
The second hypothesis is that our own evolutionary history is ambivalent and therefore it is useless to ask ourselves whether we are good or bad “by nature”. Perhaps we are both, a variable mix of good and evil. Recent scientific data confirms that our mind has evolved by dealing with social relationships in small groups, each in conflict with other groups. The result is that we are cooperative and good with those we recognize as belonging to our “we”, while we tend towards aggression towards those who seem to us “other than us”. But the experiments also show that education can make a difference, teaching us to consider ever larger communities of solidarity, to the point of including the entire human species in the “we”, as the disregarded Universal Declaration of Rights of 1948 says.
Recognizing how bad you are makes you more capable of living with serenity. The “bad guys” are those who come without real suffering and a demand for treatment. People who seem (or are) insensitive to the suffering they cause in others. They are asked to treat them to find a medical justification for behaviors that do not need justification. Behaviors aimed at the instinctual satisfaction of the individual without paying attention to the people to whom they cause suffering. This is clinically unamendable evil because it does not belong to a true definition of disease. This is a terrifying evil.