Solution:Statement (I) is false and Statement (II) is true.
Statement (I): This is false because, Karl Marx wrote his Master's dissertation on the topic The Difference between the democritean and Epicurean philosophy of Nature', Focused on the philosophical views of Democritus and Epicurus.
Statement (II): This is true because, in a communist society, nobody has one exclusive sphere of activity, because, the class distinctions and divisions are totally abolished.