The motive force of history is truth and not lies.

Old age is the most unexpected of all things that happen to a man.

Everyone has a right to be stupid, but Comrade MacDonald abuses the privilege.

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

Our differences with [Joseph] Stalin are entirely of a strategical character.

No one revolution up to now has brought all that was expected of it by the masses. Hence the inevitability of a certain disillusionment, of a lowering of the activity of the vanguard, and consequently, of the growing importance of the rearguard. [Joseph] Stalin's faction has raised itself on the wave of reaction against the October revolution.

History has different yardsticks for the cruelty of the Northerners and the cruelty of the Southerners in the Civil War. A slave-owner who through cunning and violence shackles a slave in chains, and a slave who through cunning or violence breaks the chains – let not the contemptible eunuchs tell us that they are equals before a court of morality!