A young member of the German communist party went to his senior comrade with a strange request: he wanted permission from the Party to emigrate to West Germany. (It is only with the permission of the Party that people are allowed to leave East Germany. Often it is ``granted'' as a method of eliminating people with inappropriate attitudes.)
``For what reasons could you possibly want to leave the Socialist paradise, young comrade?''
``Well, sir, I have a main reason, and a kind of side reason. The side reason is this: I know our Party has established a paradise here in the Democratic Republic, but the reason I want to leave is that I am very afraid that is will not last.''
``Don't worry, son! It will last for ever.''
``Well, good, sir: but that brings me to my main reason....''