Back Vertrauen ist gut, Kontrolle ist besser! German Trust, but verify English Confía, pero verifica Spanish اعتماد کن، ولی راستیآزمایی کن Persian Faites confiance, mais vérifiez French Percaya, lalu pastikan ID Trust, but verify Japanese Confia, mas confira Portuguese 信任，但要核实 Chinese
Trust, but verify is a Russian proverb. It was used often in the text of nuclear disarmament during the Cold War era by Ronald Reagan and meant the United States can trust the Soviet Union, but they need to make sure they won't betray the United States.