Anton PannekoekThinkers

Socialism (n.) cannot ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠arrive by seating a new ruling class where the bourgeoisie sat; it comes only when workers themselves become masters of production.

State socialism (n.) only ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠swaps the bourgeoisie for a new governing class of officials and managers; workers are freed only when they themselves run production.