"This guy is clearly typical member of the technician class. Might even be one of the guys that has flown those fucking jets over my home. This gives great relief to my choking, frustrated anger and sense of impotence against the system. At the same time, must admit I feel badly about having crippled this man’s arm. It has been bothering me a good deal. This is embarrassing because while my feelings are partly from pity, I am sure they come largely from the training, propaganda, brainwashing we all get, conditioning us to be scared by the idea of doing certain things. It is shameful to be under the sway of this brainwashing. But do not get the idea that I regret what I did. Relief of frustrated anger outweighs uncomfortable conscience."
January 1, 1970
https://en.wikiquote.org/wiki/Theodore_Kaczynski