Separated from mass action, the act of an individual who thinks he can accomplish great things on his own is useless. But as part of a mass movement, it's of the greatest importance. The class in struggle isn't a regiment of identical puppets marching in step and accomplishing great things through the blind force of its own movement. It is on the contrary a mass of multiple personalities, pushed forward by the same will, supporting itself, exhorting itself, giving itself courage.