Worth mentioning that this was after Oppenheimer was stripped of his security clearance so he didn't have access to work that he himself had done on the Manhattan Project ... his brother was blacklisted, lost his academic job, did ranching, and founded the Exploratorium... Oppenheimer exudes a great deal of serenity and optimism considering the times and trials he went through.

https://en.wikipedia.org/wiki/J._Robert_Oppenheimer#Security...