Fidel Castro is renowned for his hours-long speeches (to which I would have loved to listen). But he is by no means the only communist leader who could regale an audience for hours on end. In May of 1927, Stalin made these opening comments to the students of Sun Yat-Sen University:
Comrades, unfortunately, I can devote only two or three hours to today’s talk. Next time, perhaps, we shall arrange a longer conversation.