You come into the world alone and you go out of the world alone yet it seems to me you are more alone while living than even going and coming.
There was a very serious communist strain among American intellectuals before the war. America was a more tolerant place in those days, and Communists were not treated as pariahs. That ended with the McCarthy era.
Everybody uses mime and gesture in real life, though we don't realize it. It's very useful as a performance technique, though it can be boring to watch on its own.