For our party and for our party tactics there is but one valid basis: the basis of the class struggle, out of which the Social Democratic party has s… - Wilhelm Liebknecht

We shall never go wrong if we do what is opposed to the interests of our enemy. On the other hand, we shall almost never go right if we do what our enemies applaud. Historical development is a continuous conflict, a conflict of interests, a conflict of races, a conflict of classes. And if friendship does not count even in ordinary business, how much less so in such a conflict. Good-naturedness and sentimentality have no place in politics. They have never won a victory, but have brought unnumbered defeats. Bluecher’s motto, “Always follow the cannon’s roar and throw yourself upon the enemy,” is the best rule also in .

We dare not do all that our opponents do. We dare not sacrifice everything for advantages. For what is an advantage to our opponents is deadly poison to us. The nobility say of themselves, ; so we may say, socialisme oblige, socialism imposes its obligations.

Socialism cannot conquer nor redeem the world if it ceases to believe upon itself alone.