No surrender

"The workers’ state must be taken as it has emerged from the merciless laboratory of history and not as it is imagined by a “socialist” professor, reflectively exploring his nose with his finger. It is the duty of revolutionists to defend every conquest of the working class even though it may he distorted by the pressure of hostile forces. Those who cannot defend old positions will never conquer new ones."

TROTSKY, No Surrender to the Enemy of Positions Already Won (1940/4/25)