Discussion on Lenin's Mind of Relationship between Two Systems and Its Practical Significance

The struggle and coexistence between socialism and capitalism were explored originally by Lenin,which enriched and developed the Marxist theory.Lenin's understanding of the relationship between socialism and capitalism experienced three periods including surpassing captalism directly through revolutions,peacefully coexisting with capitalism and utilzing capitalism,the unified between the flexible strategy and firm principle had important enlightening significance for socialist countries to dealing with the relationship with capitalist countries.