It involves a dialectical and materialist, or dialectical materialist, approach to the application of Marxism to the cultural sphere, specifically areas related to taste such as art, beauty, etc. Marxists believe that economic and social conditions, and especially the class relations that derive from them, affect every aspect of an individual's life, from religious beliefs to legal systems to cultural frameworks. From one classic Marxist point of view, the role of art is not only to represent such conditions truthfully, but also to seek to improve them (social/socialist realism); however, this is a contentious interpretation of the limited but significant writing by Marx and Engels on art and especially on aesthetics.