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

[Joseph] Stalin closes the exposition of these [Leon Trotsky] ideas with the words, "Such are in general the characteristic features of [Vladimir] Lenin's conception of the proletarian revolution."

The revolution has its own laws: in the period of its culmination it pushes the most highly developed, determined and far-seeing stratum of the revolutionary class to the most advanced positions.

You are pitiful isolated individuals; you are bankrupts; your role is played out. Go where you belong from now on - into the dustbin of history!

The motive force of history is truth and not lies.

Fascism is nothing but capitalist reaction...

There is no justice in bureaucracy for the individual, for bureaucracy caters only to itself. One cannot practice the same bureaucracy as one is fighting against.