“When you imagine mistakes, there can be no self-defense.”

“It would be madness to imagine that I or anybody else has private thoughts, private and independent: the self is the sum of the understanding the self, only when I can understand that there is also you, I can perceive my deeds and to be.”

“In self-defense and in defense of the innocent, cowardice is the only sin.”

“I don't even call it violence when it's in self defense; I call it intelligence.”

“We can found no scientific discipline, nor a hearty profession, on the technical mistakes of the Department of Defense and, mainly, one computer manufacturer.”

“It was anticipating self-defense.”

“I read in self-defense.”

“There are two kinds of morality—the kind of morality that one imposes on oneself and the kind of morality that one imposes on others. For the first kind of morality, that is, for self-restraint, I have the greatest respect. The second kind of morality I do not respect except when it constitutes self-defense. (For example, when women say that rape and wife-beating are immoral, that is self-defense.) I have noticed that the people who try hardest to impose moral code on others (not in self-defense) are often the least careful to abide by that moral code themselves.”

“Murder begins where self-defense ends.”

“If you make the mistake of capitalism, you should not be criticized. But we should have self-criticism.”