On the one hand, we have the ...

On the one hand, we have the mass; on the other, its historic goal, located outside of existing society. On one hand, we have the day-to-day struggle; on the other, the social revolution. It follows that this movement can best advance by tacking betwixt and between the two dangers by which it is constantly being threatened. One is the loss of its mass character; the other, the abandonment of its goal. One is the danger of sinking back to the condition of a sect; the other, the danger of becoming a movement of bourgeois social reform.
 Rosa Luxemburg

Quotes from the same author

Freedom is always and exclusively freedom for the one who thinks differently.
 Rosa Luxemburg
Self-criticism, cruel, unsparing criticism that goes to the very root of the evil, is life and breath for the proletarian movement.
 Rosa Luxemburg
The more that social democracy develops, grows, and becomes stronger, the more the enlightened masses of workers will take their own destinies, the leadership of their movement, and the determination of its direction into their own hands.
 Rosa Luxemburg
Life is singing also in the sand crunching under the slow and heavy steps of the guards, when we know how to listen to it.
 Rosa Luxemburg
The self-discipline of the Social Democracy is not merely the replacement of the authority of bourgeois rulers with the authority of a socialist central committee. The working class will acquire the sense of the new discipline, the freely assumed self-discipline of the Social Democracy, not as a result of the discipline imposed on it by the capitalist state, but by extirpating, to the last root, its old habits of obedience and servility.
 Rosa Luxemburg