To overthrow the power of the bourgeoisie and to establish the power of the proletariat in one country still does not signify the full victory of Socialism.

‎The party that leans upon the workers but serves the bourgeoisie, in the period of the greatest sharpening of the class struggle, cannot but sense the smells wafted from the waiting grave.

Only the defeat of the proletariat in Germany in 1923 gave the decisive push to the creation of Stalin's theory of national socialism: the downward curve of the revolution gave rise to Stalinism, not to the theory of the permanent revolution, which was first formulated by me in 1905. This theory is not bound to a definite calendar of revolutionary events; it only reveals the world-wide interdependence of the revolutionary process.

Where force is necessary, there it must be applied boldly, decisively and completely.

In the appendix to my History of the Russian Revolution I give a detailed and documented study of the ideas of the Bolshevik party on the October revolution. This study, I hope, will make it impossible in the future to ascribe to [Vladimir] Lenin the theory of Socialism in a single country.

Let us not forget that revolutions are accomplished through people, although they be nameless. Materialism does not ignore the feeling, thinking, and acting man, but explains him.

In 1925 - 27 the revolution in China was destroyed by the false revolutionary strategy of the Stalinist faction. To this last question I consecrate my book, Problems of the Chinese Revolution (issued by the Pioneer Publishers, New York 1932).