The line of thought propagated by Karl Marx is called scientific socialism. Marx’s outlook was purely scientific. Thinkers preceding Marx emphasis-ed on eliminating the rampant economic disparities and also for judicial and proper distribution of economic sources in the society.
Because of what reasons, this disparity is born and what is its relations with the factors of production, no definite logic was put forth regarding these questions. Marx not only exposed the defects prevalent in capitalism, but he also came out with a definite blue-print for formation of class – less society by ending capitalism.
He brought socialism out from an imaginary background and provided a scientific basis to it, terming it as Marxism.
Len Lancaster accepts Marxism as scientific socialism because of two reasons:
1. It is based on facts, not on imagination
2. It not merely transforms old system in a scientific way but it also adopts a scientific outlook in order to get a new system altogether. Taylor has also said that the powers which are defined in Marxism are capable to carry out social changes and these powers make it scientific.