"Yes, I am a monster, a bloodthirsty beast. But I am a monster for the good of the world."

"The sound of music does not stir me. It acts on my nerves as an irritant. I am unable to listen to music."

"We must combine the struggle for democracy with the struggle for socialism."

"The more powerful the resistance of the exploiting classes, the more ruthless, the more merciless, the more uncompromising must be the struggle."

"Capitalists are no more capable of self-sacrifice than a man is capable of lifting himself up by his own bootstraps."