Learning is never done without errors and defeat.
Free speech is a bourgeois prejudice.
It is more pleasant and useful to go through the 'experience of the revolution' than to write about it.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Whenever the cause of the people is entrusted to professors, it is lost.
But democracy is by no means a limit one may not overstep; it is only one of the stages in the course of development from feudalism to capitalism, and from capitalism to Communism.