Abstract
Socialism grew up in opposition to capitalism, just as liberalism developed in reaction to feudalism. Both liberalism and socialism combined potent critiques of the existing socio‐economic order with blueprints for a desirable future society. However, liberalism provides a rather more coherent body of thought than does socialism, and its theories are linked with the emergence of a dominant system combining capitalism and liberal democracy. By contrast, no widespread socio‐economic order has as yet emerged which can be confidently or closely associated with the ideas of socialism. In both cases the relationship between theories and actual systems is a contestable one, but it has been particularly problematic in the history of socialism.