Erich Fromm discusses the origins of aggression in human beings in his book "The Sane Society". He argues that aggression is not innate, but rather is a result of the different needs of humans and animals. In particular, he claims that human aggression is driven by the need for self-defense and the desire for territory and food. Fromm also discusses the character trait of aggression, which he defines as the willingness of humans to inflict great harm on others. He claims that this character trait is not limited to "evil" actions, but is rather a common feature of many different types of aggression.
Erich Fromm discusses the origins of aggression in this video. He argues that aggression is a natural response to feeling powerless and that the victim of aggression is often unaware of the extent to which they are being controlled. Fromm discusses how people can become obsessed with power and eventually become crazed, seeking to break boundaries set by humans in order to achieve complete control.