Rudi Feistman is gone, but his type is still around and making trouble

From Arthur Koestler, The Invisible Writing:

Rudy Feistman was one of the young intellectuals, or rather eternal adolescents of the Party, who had never done any serious work in their lives, were incapable of standing on their own feet, and therefore regarded themselves as 'professional revolutionaries'. They had become so completely soaked in the atmosphere of the Party and in the dialectics of the smear, that they regarded slander as a natural and legitimate weapon.