In 1934, H. G. Wells travelled to the USSR to interview Stalin. A few delightful snippets from that interview:

Wells: Now I have come to ask you what you are doing to change the world …
Stalin: Not so very much…

Stalin: You, Mr. Wells, evidently start out with the assumption that all men are good. I, however, do not forget that there are many wicked men.​

Wells: I cannot yet appreciate what has been done in your country; I only arrived yesterday. But I have already seen the happy faces of healthy men and women and I know that something very considerable is being done here. The contrast with 1920 is astounding.
Stalin: Much more could have been done had we Bolsheviks been cleverer.
Wells: No, if human beings were cleverer. It would be a good thing to invent a five-year plan for the reconstruction of the human brain which obviously lacks many things needed for a perfect social order. (Laughter.)​

Works, vol 14, pp. 21, ​43-44.