influence on Russian revolutionary movement, [259];
desire for a ready-made socialism, [273].
Plato, [16].
Political economy, its relation to socialism, [14];
historical and ethical conception of, promoted by socialism, [281];
its relation to socialism again considered, [338], [339], [409]-410.
Progressist party in Germany, [79], [83], [208].
Proletariat, the class excluded from land and capital and dependent on wage-labour, [8];
brought into active historic contrast to the bourgeoisie, [41];