“Physical love is unthinkable without violence.”

the good combat soldier, who gets his sense of power by developing fighting skills that he is quite content to use in blind obedience to his superiors
"Autonomy", paragraph 43
Industrial Society and Its Future (1995)

Source: The Seth Material (1970), p. 274
Context: When every young man refuses to go to war, you will have peace. As long as you fight for gain and greed, there will be no peace. As long as one person commits acts of violence for the sake of peace, you will have war. Unfortunately it is difficult to imagine that all the young men in all of the countries will refuse to go to war at the same time. And so you must work out what violence has wrought. Within the next hundred years, that time may come. Remember, you do not defend any idea with violence. There is no man who hates but that hatred is reflected outward and made physical. And there is no man who loves but that love is reflected outward and made physical.

Burns (1828).
1820s, Critical and Miscellaneous Essays (1827–1855)

Source: Atonement

"Violence in the media." Canadian Forum. Volume 56, 1976, p. 9
1970s

Source: Unmasked: Inside Antifa’s Radical Plan to Destroy Democracy (2021), p. 17

"Body Pleasure and the Origins of Violence" (1975)

The Way In (2000)