What is evil?
Before these lessons progress any further, its important to stop and clearly define just exactly what evil is.
Webster's defines evil as "1 a : morally reprehensible : sinful, wicked b : arising from actual or imputed bad character or conduct 2 a archaic : inferior b : causing discomfort or repulsion"
The problem with the dictionary definition of evil is that it depends on a culturally defined sense of morality. The issues with that are, 1.) Cultural morality is not universal. What may be immoral in one culture, religion, or subculture, may be a required courtesy in another. 2.) Culture changes over time. Earlier this century television was regarded as the devil's playground. Now, every church of noteworthy size has its own studio.
As such, it is not truly effective to define evil by culture.
Many people (not including Wall Street executives) think that greed, in any of its forms, is the definition of evil. Good old Webster's defines greed as "a selfish and excessive desire for more of something (as money) than is needed."
This, I think is closer to the truth, but does not cover the scope of the many facets of evil. Serial killers, for instance, aren't trying to acquire anything. They kill out of a psychological need.
I submit to you that evil is that which diminishes or deprives people and things of value and potential, regardless of intent, or gain.
Now, what does it mean to diminish or deprive someone of value?
This is not a reference to a measure of monetary value. Humans, depending on one's belief system, are either the result of billions of years of evolutionary processes, divine bio-engineering, cosmic karmic forces, or various combinations of the three. Either way, sentient life is rare, which makes each instance of it precious.
People are deprived of value when they are convinced that they are worth less, and somehow should be subjected to a host of arbitrary deprivations and abuses. People who understand their value, and the value of humanity, rarely submit to various "isms" (sexism, racism, classism) which make institutional exploitation easier.
What does it mean to diminish or deprive people of potential?
Humans are capable of tremendous things: beauty, art, science, poetry, music, humor, love, honor, and nobility. Even people born with mental or physical disabilities are capable of offering and accomplishing amazing things. When you convince people that they can't do something that is within the realm of possiblity, or harm them psychologically enough to abandon hope, you are diminishing their potential. Physical harm can accomplish this, but is much less effective than psychology, and much easier to overcome.
Now, why would we want to do this?
Diminished people are easier to control and exploit. That makes it easier to use them for your own ends. Also, people make interesting noises when you squish them.