War may break out unexpectedly. Wars are not declared, nowadays. They simply start.

American democracy and the Soviet system may peacefully exist side by side and compete with each other. But one cannot evolve into the other.

...a great army of the proletarian party [must be] prepared to smash the reactionary forces and to clear the way for the advanced forces of society.

It is difficult for me to imagine what "personal liberty" is enjoyed by an unemployed person, who goes about hungry, and cannot find employment.

History shows that when any state intends to make war against another state, even not adjacent, it begins to seek for frontiers across which it can reach the frontiers of the state it wants to attack. Usually, the aggressive state finds such frontiers.

Of course, Soviet people would like to see the face of surrounding states changed, but that is the business of the surrounding states.

...the transition from capitalism to Socialism and the liberation of the working class from the yoke of capitalism cannot be effected by slow changes, by reforms, but only by a qualitative change of the capitalist system, by revolution. Hence, in order not to err in policy, one must be a revolutionary, not a reformist.