This is why Count Rugen was so demanding

“Yet in one key respect, Kennan’s diaries proved unrevealing. Like many people, Kennan journaled less when he was busy, and there is virtually nothing of consequence from 1946 or 1947, when he wrote the two documents on which his influence rested and when he began to reconsider fundamental assumptions about the nature of the Soviet challenge and the preferred American response. For the entirety of 1947, arguably the pivotal year of both the early Cold War and Kennan’s career, there is but a single entry: a one-page rhyme.”

https://www.foreignaffairs.com/reviews/ghosts-george-kennan-lessons-cold-war