As an historical sidelight, the English writer Jerome K Jerome (best remembered for the comic masterpiece Three Men In A Boat) wrote an essay in 1905, "Creatures That One Day Shall Be Men". He clearly foresaw the coming Russian Revolution, and realized that it would be more brutal than the French Revolution. The essay is on-line at http://www.online-literature.com/jerome/idle-ideas/10/ and is worth reading.