In a serious struggle there is no worse cruelty than to be magnanimous at an inopportune time.

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.

In spite of the existence of the Soviet Union, however, the proletarian revolution during the past years has not recorded a victory in any other country.

In a serious struggle there is no worse cruelty than to be magnanimous at an inopportune time.

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.

It is also false that the revolution ripens and comes to development only in the national soil.

The theory of the permanent revolution, in contradiction to the theory of socialism in one country, was recognized by the entire Bolshevik party during the period from 1917 to 1923.