“Force, defined as above, is not conserved at all. It may appear and disappear; it is continually being created and destroyed. "Conservation of force" is, mathematically speaking, a contradiction in terms.”

Source: Callahan's Crosstime Saloon (1977) "Laws of Conservation of Pain and Joy"

The Egyptians (1967), p. 93
General sources

When asked to respond to questions of whether Sea Shepherd is too radical/extreme. Taken from an interview given to the environmentalist magazine, Resistance: Journal of the Earth Liberation Movement http://www.resistancemagazine.org/

1990s, The Monarchy: A Critique of Britain's Favourite Fetish
Context: The first False Issue one normally encounters is the claim that it has 'no real power'. One never quite knows what 'real' is intended to mean here, but the conventions of the False Issue lead one to guess that the word is doing duty for 'formal'. Thus is the red herring introduced. A moment later, the same speaker is telling another listener of all the good things that monarchy is a 'force' for. These good things invariably turn out to be connected to power. They are things like 'stability', 'unity', 'national cohesion', 'continuity' and other things for which powerless people would find it difficult to be a force. Edmund Wilson would have had little trouble noticing, furthermore, that all the above good things are keywords for conservative and establishment values.

Address to the Society for Psychical Research (1897)
Context: The clock runs down. I lift the weight by exerting the proper amount of energy, and in this action the law of conservation of energy is strictly obeyed. But now I have the choice of either letting the weight fall free in a fraction of a second, or, constrained by the wheelwork, in twenty-four hours. I can do which I like, and whichever way I decide, no more energy is developed in the fall of the weight. I strike a match; I can use it to light a cigarette or to set fire to a house. I write a telegram; it may be simply to say I shall be late for dinner, or it may produce fluctuations on the stock exchange that will ruin thousands. In these cases the actual force required in striking the match or in writing the telegram is governed by the law or conservation of energy; but the vastly more momentous part, which determines the words I use or the material I ignite, is beyond such a law. It is probable that no expenditure of energy need be used in the determination of direction one way more than another. Intelligence and free will here come into play, and these mystic forces are outside the law of conservation of energy as understood by physicists.

Source: The Human Side of Enterprise (1960), p. 211 (p. 289 in 2006 edition)

Property (1935)
Context: The actual participants in industry under individualism are prompted to action by the following combination of incentives: desire for an income, desire for a higher income, desire for security, satisfaction received from shouldering responsibility or from wielding power, the joy of participation in creative activity, and the desire for applause and prestige.... And all these motivations may be conserved and strengthened under socialism.

Said of the Johnson ministry. John Major claims Boris Johnson could use 'political chicanery' to force through a no-deal Brexit https://inews.co.uk/news/politics/brexit/brexit-latest-john-major-boris-johnson-political-chicanery-637557
2010s