1985 Reagan–Gorbachev meeting at the Geneva Summit in Switzerland
Suzanne Massie, an American scholar, met with Ronald Reagan many times between 1984 and 1987 while he was President of the United States.[1] She taught him the Russian proverbdoveryai, no proveryai (доверяй, но проверяй) meaning 'trust, but verify'. She advised him that "The Russians like to talk in proverbs. It would be nice of you to know a few. You are an actor – you can learn them very quickly."[2] The proverb was adopted as a signature phrase by Reagan, who used it frequently when discussing United States relations with the Soviet Union.[3][4][5]
After Reagan used the phrase to emphasize "the extensive verification procedures that would enable both sides to monitor compliance with the treaty",[6] at the signing of the INF Treaty, on 8 December 1987,[notes 1] his counterpart General Secretary Mikhail Gorbachev responded, "You repeat that at every meeting". To this, Reagan answered, "I like it".[3][8][7] While Reagan quoted Russian proverbs, Gorbachev quoted Ralph Waldo Emerson, who had been popular in the USSR when Gorbachev was in college, saying that "the reward of a thing well done is to have done it."[4][6]
Following the 2013 Ghouta attacks, Secretary of State John Kerry told a news conference in Geneva that the United States and Russia had agreed on a framework to dispose of Syria's chemical weapons. He said "President Reagan's old adage about 'trust but verify' ... is in need of an update. And we have committed here to a standard that says 'verify and verify'."[9][10]
In 1995, the similar phrase "Trust and Verify" was used as the motto of the On-Site Inspection Agency (now subsumed into the Defense Threat Reduction Agency).[11]
In 2001, the National Infrastructure Protection Center (NIPC), a national critical infrastructure threat investigation and response entity, published a paper entitled "Trust but verify" on how to protect oneself and their company from email viruses.[14]
In 2015, both Democrats and Republicans invoked the phrase when arguing for and against the proposed Iran nuclear deal framework.[3]
In the study of programming languages, the phrase has been used to describe the implementation of downcasting: the compiler trusts that the downcast term will be of the desired type, but this assumption is verified at runtime in order to avoid undefined behavior.[15]
The phrase has been used in relation to India–China border disputes and also following the Galwan clash during the 2020 China–India skirmishes.[16] Variants of the phrase were also reported in the Indian media, "distrust until fully and comprehensively verified", and "verify and still not trust".[17][18][19]
Lenin raised postulates of similar wording and meaning in a number of early publications:
"Put no faith in words; subject everything to the closest scrutiny—such is the motto of the Marxist workers" (Russian: "Не верить на слово, проверять строжайше — вот лозунг марксистов рабочих, Ne verit' na slovo, proveryat' strozhayshe — vot lozung marksistov rabochikh)[22]
"To test men and verify what has actually been done—this, this again this alone is now the main feature of all our activities, of our whole policy" (Russian:『Проверять людей и проверять фактическое исполнение дела — в этом теперь гвоздь всей работы,』Proveryat' lyudey i proveryat' fakticheskoye ispolneniye dela — v etom teper' gvozd' vsey raboty).[23]
In another 1917 publication "How to organise competition" Lenin highlights the need for strict and mutual "accounting and control" on all layers of the socialist society, repeating these terms overall nine times across the article.[24]
"Healthy distrust makes a good basis for cooperation" (Здоровое недоверие — хорошая основа для совместной работы, Zdorovoye nedoveriye — khoroshaya osnova dlya sovmestnoy raboty).[25]
^The Intermediate Nuclear Force Treaty (INF) aimed to eliminate short and medium range nuclear weapons from their respective national arsenals.[7] Watson described it as a "written embodiment of Gorbachev’s policies and personality based on a life spent in and out of the Soviet Union."
^Lindgren, David T. (November 2000). Trust But Verify: Imagery Analysis in the Cold War. Annapolis, Md.: Naval Institute Press. pp. xiii+222.
^Day, Dwayne A. (October 2001). "Trust but Verify: Imagery Analysis in the Cold War (review)". Technology and Culture. 42 (4): 822–823. doi:10.1353/tech.2001.0156. S2CID108591052.
^Trust but verify [electronic resource] : a guide to using e-mail correspondence (Report). Washington, D.C.: National Infrastructure Protection Center (U.S.). 2001.
^Pierce, Benjamin (2002). Types and Programming Languages. Cambridge, MA, USA: MIT Press. p. 194. ISBN0-262-16209-1.
