“We shall drink the cause of Liberalism all over the world. The reign of Metternich is over and the days of the Duke's policy might be measured by algebra, if not by arithmetic.”
Letter to Henry Sulivan in response to the French Revolution of 1830 (1 August 1830), quoted in Jasper Ridley, Lord Palmerston (1970), p. 103
1830s
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Henry Temple, 3rd Viscount Palmerston 72
British politician 1784–1865Related quotes

"Appeal to Compatriots" (1966)
1960's

Journal of Speculative Philosophy, Vol. 5, p. 175. Reported in: Memorabilia mathematica or, The philomath's quotation-book, by Robert Edouard Moritz. Published 1914
Journals
“In our kind of world, to rely upon anarchy and inaction, is to turn the reigns over to violence.”
The Personality of Jesus (1932)
Context: Unless effective non-violent means of coercion can be devised and utilized, the victims of injustice will, in blindness and desperation, take up weapons of violence. In our kind of world, to rely upon anarchy and inaction, is to turn the reigns over to violence.

Second Lecture, The Elements of the Theory of Probability, p. 38
Probability, Statistics And Truth - Second Revised English Edition - (1957)

Letter to the Crown Prince (7 September 1925), quoted in Jonathan Wright, Gustav Stresemann: Weimar's Greatest Statesman (Oxford University Press, 2004), p. 327
1920s

Vol. I: Arithmetical Algebra Preface, p. vi-vii
A Treatise on Algebra (1842)