Karl Marx is one of the most influential figures in history. Since his death and the widespread distribution of his works, his legacy has affected almost everybody alive on the planet today. He has had a huge influence on the arts: Literature, art, theatre, film and even music. Peter Singer, in his book about Marx likened his impact on the world to that of Jesus or Mohammed. His biggest influence, however, has been on the world of politics. One very small example of this could be the Welfare State which exists in the UK; we owe the idea such institutions as pensions, free education, health care and social security benefits to Marx. If he didn't suggest these institutions directly, his writings have affected their emergence in some way.

The first question is why do we need to know if Marx's theory is scientific or not? In today's context...