Why should freedom of speech and freedom of press be allowed? Why should a government which is doing what it believes to be right allow itself to be criticized? It would not allow opposition by lethal weapons. Ideas are much more fatal things than guns. Why should any man be allowed to buy a printing press and disseminate pernicious opinions calculated to embarrass the government?

The best way to control the opposition is to lead it ourselves.

Give us the child for eight years and it will be a Bolshevik forever.

False rhetoric and false boastfulness spell moral ruin and lead unfailingly to political extinction.

Give me just one generation of youth, and I'll transform the whole world.

The natural scientist must be a modern materialist, a conscious adherent of the materialism represented by Marx, i.e., he must be a dialectical materialist.

It is impossible to predict the time and progress of revolution. It is governed by its own more or less mysterious laws.