См. также: доска, достаточно!, достаточный опыт, достижения науки
Langdon had lectured often enough on the Knights Templar to know that almost everyone on earth had heard of them, at least abstractedly. (The Da Vinci Code by Dan Brown)
"Repeat a lie often enough and it becomes the truth", is a law of propaganda often attributed to the Nazi propaganda chief Joseph Goebbels. (BBC)
