Whenever we teach a class in "Modern Art" we are confronted with a couple of interesting issues.One is:what is the relationship between the tendency toward abstraction in the 20th century and the realism of the 20th century.Some have equated this disjuncture to a deep psycological disturbance in the mind of Picasso.Picasso -as we recall-is both a realist and a force for abstraction.Some recent theorists have argued that the interpretation of primitivism by Expressionists of the realist persua...