Richard Pipes (1923–2018) American historian
Source: Russia Under The Bolshevik Regime (1994), p. 262
Peadar Tóibín to host Waterford meeting about new party https://www.wlrfm.com/2019/01/21/peadar-toibin-to-host-waterford-meeting-about-new-party/ (January 21, 2019)
Richard Pipes (1923–2018) American historian
Source: Russia Under The Bolshevik Regime (1994), p. 262
“Good kings are the enemies of democracy.”
Oscar Wilde Vera; or, The Nihilists
Vera; or, The Nihilists (1880)
“Chaos and Order are not enemies, only opposites.”
Richard Garriott (1961) video game developer, astronaut and entrepreneur
Recep Tayyip Erdoğan (1954) 12th President of Turkey from 2014
As quoted in " Turkey's Erdogan warns Europeans 'will not walk safely on the streets' if diplomatic row continues https://www.independent.co.uk/news/world/europe/turkey-erdogan-germany-netherlands-warning-europeans-not-walk-safely-a7642941.html", The Independent (March 22 2017)
“If mutual respect does derive from unilateral respect, it does so by opposition.”
Jean Piaget (1896–1980) Swiss psychologist, biologist, logician, philosopher & academic
Source: The Moral Judgment of the Child (1932), Ch. 2 : Adult Constraint and Moral Realism
“A great truth is a truth whose opposite is also a truth.”
Thomas Mann (1875–1955) German novelist, and 1929 Nobel Prize laureate
Essay on Freud (16 May 1929)
“The best evidence that we are still in a democracy is the fact that there is still an opposition.”
Francis Escudero (1969) Filipino politician
Kap Maceda Aguila, "The Substance of Chiz", People Asia, 2006 June, p. 50, ISSN 0119-657X.
2006
Gottfried Leibniz (1646–1716) German mathematician and philosopher
Il y a aussi deux sortes de vérités, celles de Raisonnement et celle de Fait. Les vérités de Raisonnement sont nécessaires et leur opposé est impossible, et celles de Fait sont contingentes et leur opposé est possible.
La monadologie (33).
The Monadology (1714)
Niels Bohr (1885–1962) Danish physicist
As quoted by his son Hans Bohr in "My Father", published in Niels Bohr: His Life and Work (1967), p. 328
Unsourced variant: The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
As quoted in Max Delbrück, Mind from Matter: An Essay on Evolutionary Epistemology, (1986) p. 167. It is the hallmark of any deep truth that its negation is also a deep truth